Pack, Andreas

[["dc.bibliographiccitation.firstpage","18"],["dc.bibliographiccitation.journal","Chemical Geology"],["dc.bibliographiccitation.lastpage","26"],["dc.bibliographiccitation.volume","495"],["dc.contributor.author","Sengupta, Sukanya"],["dc.contributor.author","Pack, Andreas"],["dc.date.accessioned","2019-07-24T07:14:53Z"],["dc.date.available","2019-07-24T07:14:53Z"],["dc.date.issued","2018"],["dc.description.abstract","The oxygen isotope composition of the Earth's oceans is buffered by high- and low-T exchange with the lithosphere. We present a triple oxygen isotope mass balance model for the Earth's oceans. The model is based on triple oxygen isotope measurements of rocks from various reservoirs including high- and low-T alteration products. The modern ocean water composition can be well-matched if the ratio between continental weathering and high-T seafloor alteration is ~25% higher than previously assumed. The mass balance suggests that putative Precambrian low-δ18O ocean water would fall on a trend with slope λ = 0.51 passing through “modern” ice-free-world seawater. Exemplified application to a published Phanerozoic and Archean chert data suggest precipitation in cool oceans with modern-like δ18O followed by diagenetic alteration with involvement of meteoric water."],["dc.identifier.doi","10.1016/j.chemgeo.2018.07.012"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16296"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/61958"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","0009-2541"],["dc.rights","CC BY-ND 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by-nd/4.0"],["dc.title","Triple oxygen isotope mass balance for the Earth's oceans with application to Archean cherts"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","15702"],["dc.bibliographiccitation.journal","Nature communications"],["dc.bibliographiccitation.lastpage","15702"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Pack, Andreas"],["dc.contributor.author","Höweling, Andres"],["dc.contributor.author","Hezel, Dominik C."],["dc.contributor.author","Stefanak, Maren T."],["dc.contributor.author","Beck, Anne-Katrin"],["dc.contributor.author","Peters, Stefan T. M."],["dc.contributor.author","Sengupta, Sukanya"],["dc.contributor.author","Herwartz, Daniel"],["dc.contributor.author","Folco, Luigi"],["dc.date.accessioned","2019-07-09T11:43:29Z"],["dc.date.available","2019-07-09T11:43:29Z"],["dc.date.issued","2017-06-01"],["dc.description.abstract","Molten I-type cosmic spherules formed by heating, oxidation and melting of extraterrestrial Fe,Ni metal alloys. The entire oxygen in these spherules sources from the atmosphere. Therefore, I-type cosmic spherules are suitable tracers for the isotopic composition of the upper atmosphere at altitudes between 80 and 115 km. Here we present data on I-type cosmic spherules collected in Antarctica. Their composition is compared with the composition of tropospheric O2. Our data suggest that the Earth's atmospheric O2 is isotopically homogenous up to the thermosphere. This makes fossil I-type micrometeorites ideal proxies for ancient atmospheric CO2 levels."],["dc.identifier.doi","10.1038/ncomms15702"],["dc.identifier.pmid","28569769"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14540"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/58894"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","2041-1723"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0/"],["dc.subject.ddc","550"],["dc.title","Tracing the oxygen isotope composition of the upper Earth's atmosphere using cosmic spherules"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1101"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Nature Communications"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Mißbach, Helge"],["dc.contributor.author","Duda, Jan-Peter"],["dc.contributor.author","van den Kerkhof, Alfons M."],["dc.contributor.author","Lüders, Volker"],["dc.contributor.author","Pack, Andreas"],["dc.contributor.author","Reitner, Joachim"],["dc.contributor.author","Thiel, Volker"],["dc.date.accessioned","2021-06-18T09:58:08Z"],["dc.date.available","2021-06-18T09:58:08Z"],["dc.date.issued","2021"],["dc.description.abstract","It is widely hypothesised that primeval life utilised small organic molecules as sources of carbon and energy. However, the presence of such primordial ingredients in early Earth habitats has not yet been demonstrated. Here we report the existence of indigenous organic molecules and gases in primary fluid inclusions in c. 3.5-billion-year-old barites (Dresser Formation, Pilbara Craton, Western Australia). The compounds identified (e.g., H2S, COS, CS2, CH4, acetic acid, organic (poly-)sulfanes, thiols) may have formed important substrates for purported ancestral sulfur and methanogenic metabolisms. They also include stable building blocks of methyl thioacetate (methanethiol, acetic acid) - a putative key agent in primordial energy metabolism and thus the emergence of life. Delivered by hydrothermal fluids, some of these compounds may have fuelled microbial communities associated with the barite deposits. Our findings demonstrate that early Archaean hydrothermal fluids contained essential primordial ingredients that provided fertile substrates for earliest life on our planet."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2021"],["dc.identifier.doi","10.1038/s41467-021-21323-z"],["dc.identifier.pmid","33597520"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/87260"],["dc.identifier.url","https://publications.goettingen-research-online.de/handle/2/82668"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","2041-1723"],["dc.relation.issn","2041-1723"],["dc.relation.orgunit","Abteilung Geobiologie"],["dc.rights","CC BY 4.0"],["dc.title","Ingredients for microbial life preserved in 3.5 billion-year-old fluid inclusions"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","2241"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","Meteoritics & Planetary Science"],["dc.bibliographiccitation.lastpage","2255"],["dc.bibliographiccitation.volume","55"],["dc.contributor.author","Hellmann, Jan L."],["dc.contributor.author","Kruijer, Thomas S."],["dc.contributor.author","Metzler, Knut"],["dc.contributor.author","Patzek, Markus"],["dc.contributor.author","Pack, Andreas"],["dc.contributor.author","Berndt, Jasper"],["dc.contributor.author","Kleine, Thorsten"],["dc.date.accessioned","2020-11-05T15:10:57Z"],["dc.date.available","2020-11-05T15:10:57Z"],["dc.date.issued","2020"],["dc.description.abstract","Abstract A large, igneous‐textured, and 2 cm‐sized spherical object from the L5/6 chondrite NWA 8192 was investigated for its chemical composition, petrography, O isotopic composition, and Hf‐W chronology. The petrography and chemical data indicate that this object closely resembles commonly found chondrules in ordinary chondrites and is therefore classified as a “macrochondrule. As a result of metal loss during its formation, the macrochondrule exhibits elevated Hf/W, which makes it possible to date this object using the short‐lived 182Hf‐182W system. The Hf‐W data provide a two‐stage model age for metal–silicate fractionation of 1.4 ± 0.6 Ma after Ca‐Al‐rich inclusion (CAI) formation, indicating that the macrochondrule formed coevally to normal‐sized chondrules from ordinary chondrites. By contrast, Hf‐W data for metal from the host chondrite yield a younger model age of ~11 Ma after CAIs. This younger age agrees with Hf‐W ages of other type 5–6 ordinary chondrites, and corresponds to the time of cooling below the Hf‐W closure temperature during thermal metamorphism on the parent body. The Hf‐W model age difference between the macrochondrule and the host metal demonstrates that the Hf‐W systematics of the bulk macrochondrule were not disturbed during thermal metamorphism, and therefore, that the formation age of such objects can still be determined even in strongly metamorphosed samples. Collectively, this study illustrates that chondrule formation was not limited to mm‐size objects, implying that the rarity of macrochondrules reflects either that this process was very inefficient, that subsequent nebular size‐sorting decimated large chondrules, or that large precursors were rare."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659"],["dc.description.sponsorship","Lawrence Livermore National Laboratory http://dx.doi.org/10.13039/100006227"],["dc.identifier.doi","10.1111/maps.13571"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/68498"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-352.8"],["dc.relation.eissn","1945-5100"],["dc.relation.issn","1086-9379"],["dc.rights","This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited."],["dc.title","Hf‐W chronology of a macrochondrule from the L5/6 chondrite Northwest Africa 8192"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","Rapid Communications in Mass Spectrometry : RCM"],["dc.contributor.author","Adnew, Getachew A."],["dc.contributor.author","Hofmann, Magdalena E. G."],["dc.contributor.author","Paul, Dipayan"],["dc.contributor.author","Laskar, Amzad"],["dc.contributor.author","Surma, Jakub"],["dc.contributor.author","Albrecht, Nina"],["dc.contributor.author","Pack, Andreas"],["dc.contributor.author","Schwieters, Johannes"],["dc.contributor.author","Koren, Gerbrand"],["dc.contributor.author","Peters, Wouter"],["dc.contributor.author","Röckmann, Thomas"],["dc.date.accessioned","2019-07-24T06:59:58Z"],["dc.date.available","2019-07-24T06:59:58Z"],["dc.date.issued","2019"],["dc.description.abstract","Determination of δ17 O values directly from CO2 with traditional gas source isotope ratio mass spectrometry is not possible due to isobaric interference of 13 C16 O16 O on 12 C17 O16 O. The methods developed so far use either chemical conversion or isotope equilibration to determine the δ17 O value of CO2 . In addition, δ13 C measurements require correction for the interference from 12 C17 O16 O on 13 C16 O16 O since it is not possible to resolve the two isotopologues."],["dc.identifier.doi","10.1002/rcm.8478"],["dc.identifier.pmid","31063233"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16564"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/61954"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.intern","In goescholar not merged with http://resolver.sub.uni-goettingen.de/purl?gs-1/16764 but duplicate"],["dc.relation.eissn","1097-0231"],["dc.relation.issn","0951-4198"],["dc.relation.issn","1097-0231"],["dc.rights","CC BY 4.0"],["dc.rights.access","openAccess"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.ddc","550"],["dc.title","Determination of the triple oxygen and carbon isotopic composition of CO2 from atomic ion fragments formed in the ion source of the 253 Ultra High-Resolution Isotope Ratio Mass Spectrometer"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","4"],["dc.bibliographiccitation.journal","Geochemical Transactions"],["dc.bibliographiccitation.volume","11"],["dc.contributor.author","Pack, Andreas"],["dc.contributor.author","Kremer, Katrina"],["dc.contributor.author","Albrecht, Nina"],["dc.contributor.author","Simon, Klaus"],["dc.contributor.author","Kronz, Andreas"],["dc.date.accessioned","2018-11-07T08:39:05Z"],["dc.date.available","2018-11-07T08:39:05Z"],["dc.date.issued","2010"],["dc.description.abstract","Background: In aerodynamic levitation, solids and liquids are floated in a vertical gas stream. In combination with CO2 laser heating, containerless melting at high temperature of oxides and silicates is possible. We apply aerodynamic levitation to bulk rocks in preparation for microchemical analyses, and for evaporation and reduction experiments. Results: Liquid silicate droplets (similar to 2 mm) were maintained stable in levitation using a nozzle with a 0.8 mm bore and an opening angle of 60 degrees. The gas flow was similar to 250 ml min(-1). Rock powders were melted and homogenized for microchemcial analyses. Laser melting produced chemically homogeneous glass spheres. Only highly (e.g. H2O) and moderately volatile components (Na, K) were partially lost. The composition of evaporated materials was determined by directly combining levitation and inductively coupled plasma mass spectrometry. It is shown that the evaporated material is composed of Na > K >> Si. Levitation of metal oxide-rich material in a mixture of H-2 and Ar resulted in the exsolution of liquid metal. Conclusions: Levitation melting is a rapid technique or for the preparation of bulk rock powders for major, minor and trace element analysis. With exception of moderately volatile elements Na and K, bulk rock analyses can be performed with an uncertainty of +/- 5% relative. The technique has great potential for the quantitative determination of evaporated materials from silicate melts. Reduction of oxides to metal is a means for the extraction and analysis of siderophile elements from silicates and can be used to better understand the origin of chondritic metal."],["dc.identifier.doi","10.1186/1467-4866-11-4"],["dc.identifier.isi","000283299700001"],["dc.identifier.pmid","20875118"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/6016"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/18906"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1467-4866"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Description of an aerodynamic levitation apparatus with applications in Earth sciences"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","227"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Nature communications"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Magna, Tomáš"],["dc.contributor.author","Žák, Karel"],["dc.contributor.author","Pack, Andreas"],["dc.contributor.author","Moynier, Frédéric"],["dc.contributor.author","Mougel, Bérengère"],["dc.contributor.author","Peters, Stefan T. M."],["dc.contributor.author","Skála, Roman"],["dc.contributor.author","Jonášová, Šárka"],["dc.contributor.author","Mizera, Jiří"],["dc.contributor.author","Řanda, Zdeněk"],["dc.date.accessioned","2018-06-28T08:55:56Z"],["dc.date.available","2018-06-28T08:55:56Z"],["dc.date.issued","2017"],["dc.description.abstract","Chemical fingerprints of impacts are usually compromised by extreme conditions in the impact plume, and the contribution of projectile matter to impactites does not often exceed a fraction of per cent. Here we use chromium and oxygen isotopes to identify the impactor and impact-plume processes for Zhamanshin astrobleme, Kazakhstan. ε54Cr values up to 1.54 in irghizites, part of the fallback ejecta, represent the 54Cr-rich extremity of the Solar System range and suggest a CI-like chondrite impactor. Δ17O values as low as -0.22‰ in irghizites, however, are incompatible with a CI-like impactor. We suggest that the observed 17O depletion in irghizites relative to the terrestrial range is caused by partial isotope exchange with atmospheric oxygen (Δ17O = -0.47‰) following material ejection. In contrast, combined Δ17O-ε54Cr data for central European tektites (distal ejecta) fall into the terrestrial range and neither impactor fingerprint nor oxygen isotope exchange with the atmosphere are indicated.Identifying the original impactor from craters remains challenging. Here, the authors use chromium and oxygen isotopes to indicate that the Zhamanshin astrobleme impactor was a carbonaceous chrondrite by demonstrating that depleted 17O values are due to exchange with atmospheric oxygen."],["dc.identifier.doi","10.1038/s41467-017-00192-5"],["dc.identifier.pmid","28794408"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14651"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/15152"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.relation.eissn","2041-1723"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0/"],["dc.title","Zhamanshin astrobleme provides evidence for carbonaceous chondrite and post-impact exchange between ejecta and Earth's atmosphere"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","L3"],["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","The Astrophysical Journal Letters"],["dc.bibliographiccitation.lastpage","12"],["dc.bibliographiccitation.volume","935"],["dc.contributor.affiliation","Barosch, Jens;"],["dc.contributor.affiliation","Nittler, Larry R.;"],["dc.contributor.affiliation","Wang, Jianhua;"],["dc.contributor.affiliation","O’D. Alexander, Conel M.;"],["dc.contributor.affiliation","De Gregorio, Bradley T.;"],["dc.contributor.affiliation","Engrand, Cécile;"],["dc.contributor.affiliation","Kebukawa, Yoko;"],["dc.contributor.affiliation","Nagashima, Kazuhide;"],["dc.contributor.affiliation","Stroud, Rhonda M.;"],["dc.contributor.affiliation","Yabuta, Hikaru;"],["dc.contributor.affiliation","Abe, Yoshinari;"],["dc.contributor.affiliation","Aléon, Jérôme;"],["dc.contributor.affiliation","Amari, Sachiko;"],["dc.contributor.affiliation","Amelin, Yuri;"],["dc.contributor.affiliation","Bajo, Ken-ichi;"],["dc.contributor.affiliation","Bejach, Laure;"],["dc.contributor.affiliation","Bizzarro, Martin;"],["dc.contributor.affiliation","Bonal, Lydie;"],["dc.contributor.affiliation","Bouvier, Audrey;"],["dc.contributor.affiliation","Carlson, Richard W.;"],["dc.contributor.affiliation","Chaussidon, Marc;"],["dc.contributor.affiliation","Choi, Byeon-Gak;"],["dc.contributor.affiliation","Cody, George D.;"],["dc.contributor.affiliation","Dartois, Emmanuel;"],["dc.contributor.affiliation","Dauphas, Nicolas;"],["dc.contributor.affiliation","Davis, Andrew M.;"],["dc.contributor.affiliation","Dazzi, Alexandre;"],["dc.contributor.affiliation","Deniset-Besseau, Ariane;"],["dc.contributor.affiliation","Di Rocco, Tommaso;"],["dc.contributor.affiliation","Duprat, Jean;"],["dc.contributor.affiliation","Fujiya, Wataru;"],["dc.contributor.affiliation","Fukai, Ryota;"],["dc.contributor.affiliation","Gautam, Ikshu;"],["dc.contributor.affiliation","Haba, Makiko K.;"],["dc.contributor.affiliation","Hashiguchi, Minako;"],["dc.contributor.affiliation","Hibiya, Yuki;"],["dc.contributor.affiliation","Hidaka, Hiroshi;"],["dc.contributor.affiliation","Homma, Hisashi;"],["dc.contributor.affiliation","Hoppe, Peter;"],["dc.contributor.affiliation","Huss, Gary R.;"],["dc.contributor.affiliation","Ichida, Kiyohiro;"],["dc.contributor.affiliation","Iizuka, Tsuyoshi;"],["dc.contributor.affiliation","Ireland, Trevor R.;"],["dc.contributor.affiliation","Ishikawa, Akira;"],["dc.contributor.affiliation","Ito, Motoo;"],["dc.contributor.affiliation","Itoh, Shoichi;"],["dc.contributor.affiliation","Kamide, Kanami;"],["dc.contributor.affiliation","Kawasaki, Noriyuki;"],["dc.contributor.affiliation","David Kilcoyne, A. L.;"],["dc.contributor.affiliation","Kita, Noriko T.;"],["dc.contributor.affiliation","Kitajima, Kouki;"],["dc.contributor.affiliation","Kleine, Thorsten;"],["dc.contributor.affiliation","Komatani, Shintaro;"],["dc.contributor.affiliation","Komatsu, Mutsumi;"],["dc.contributor.affiliation","Krot, Alexander N.;"],["dc.contributor.affiliation","Liu, Ming-Chang;"],["dc.contributor.affiliation","Martins, Zita;"],["dc.contributor.affiliation","Masuda, Yuki;"],["dc.contributor.affiliation","Mathurin, Jérémie;"],["dc.contributor.affiliation","McKeegan, Kevin D.;"],["dc.contributor.affiliation","Montagnac, Gilles;"],["dc.contributor.affiliation","Morita, Mayu;"],["dc.contributor.affiliation","Mostefaoui, Smail;"],["dc.contributor.affiliation","Motomura, Kazuko;"],["dc.contributor.affiliation","Moynier, Frédéric;"],["dc.contributor.affiliation","Nakai, Izumi;"],["dc.contributor.affiliation","Nguyen, Ann N.;"],["dc.contributor.affiliation","Ohigashi, Takuji;"],["dc.contributor.affiliation","Okumura, Taiga;"],["dc.contributor.affiliation","Onose, Morihiko;"],["dc.contributor.affiliation","Pack, Andreas;"],["dc.contributor.affiliation","Park, Changkun;"],["dc.contributor.affiliation","Piani, Laurette;"],["dc.contributor.affiliation","Qin, Liping;"],["dc.contributor.affiliation","Quirico, Eric;"],["dc.contributor.affiliation","Remusat, Laurent;"],["dc.contributor.affiliation","Russell, Sara S.;"],["dc.contributor.affiliation","Sakamoto, Naoya;"],["dc.contributor.affiliation","Sandford, Scott A.;"],["dc.contributor.affiliation","Schönbächler, Maria;"],["dc.contributor.affiliation","Shigenaka, Miho;"],["dc.contributor.affiliation","Suga, Hiroki;"],["dc.contributor.affiliation","Tafla, Lauren;"],["dc.contributor.affiliation","Takahashi, Yoshio;"],["dc.contributor.affiliation","Takeichi, Yasuo;"],["dc.contributor.affiliation","Tamenori, Yusuke;"],["dc.contributor.affiliation","Tang, Haolan;"],["dc.contributor.affiliation","Terada, Kentaro;"],["dc.contributor.affiliation","Terada, Yasuko;"],["dc.contributor.affiliation","Usui, Tomohiro;"],["dc.contributor.affiliation","Verdier-Paoletti, Maximilien;"],["dc.contributor.affiliation","Wada, Sohei;"],["dc.contributor.affiliation","Wadhwa, Meenakshi;"],["dc.contributor.affiliation","Wakabayashi, Daisuke;"],["dc.contributor.affiliation","Walker, Richard J.;"],["dc.contributor.affiliation","Yamashita, Katsuyuki;"],["dc.contributor.affiliation","Yamashita, Shohei;"],["dc.contributor.affiliation","Yin, Qing-Zhu;"],["dc.contributor.affiliation","Yokoyama, Tetsuya;"],["dc.contributor.affiliation","Yoneda, Shigekazu;"],["dc.contributor.affiliation","Young, Edward D.;"],["dc.contributor.affiliation","Yui, Hiroharu;"],["dc.contributor.affiliation","Zhang, Ai-Cheng;"],["dc.contributor.affiliation","Abe, Masanao;"],["dc.contributor.affiliation","Miyazaki, Akiko;"],["dc.contributor.affiliation","Nakato, Aiko;"],["dc.contributor.affiliation","Nakazawa, Satoru;"],["dc.contributor.affiliation","Nishimura, Masahiro;"],["dc.contributor.affiliation","Okada, Tatsuaki;"],["dc.contributor.affiliation","Saiki, Takanao;"],["dc.contributor.affiliation","Tanaka, Satoshi;"],["dc.contributor.affiliation","Terui, Fuyuto;"],["dc.contributor.affiliation","Tsuda, Yuichi;"],["dc.contributor.affiliation","Watanabe, Sei-ichiro;"],["dc.contributor.affiliation","Yada, Toru;"],["dc.contributor.affiliation","Yogata, Kasumi;"],["dc.contributor.affiliation","Yoshikawa, Makoto;"],["dc.contributor.affiliation","Nakamura, Tomoki;"],["dc.contributor.affiliation","Naraoka, Hiroshi;"],["dc.contributor.affiliation","Noguchi, Takaaki;"],["dc.contributor.affiliation","Okazaki, Ryuji;"],["dc.contributor.affiliation","Sakamoto, Kanako;"],["dc.contributor.affiliation","Tachibana, Shogo;"],["dc.contributor.affiliation","Yurimoto, Hisayoshi;"],["dc.contributor.author","Barosch, Jens"],["dc.contributor.author","Nittler, Larry R."],["dc.contributor.author","Wang, Jianhua"],["dc.contributor.author","O’D. Alexander, Conel M."],["dc.contributor.author","De Gregorio, Bradley T."],["dc.contributor.author","Engrand, Cécile"],["dc.contributor.author","Kebukawa, Yoko"],["dc.contributor.author","Nagashima, Kazuhide"],["dc.contributor.author","Stroud, Rhonda M."],["dc.contributor.author","Yabuta, Hikaru"],["dc.contributor.author","Abe, Yoshinari"],["dc.contributor.author","Aléon, Jérôme"],["dc.contributor.author","Amari, Sachiko"],["dc.contributor.author","Amelin, Yuri"],["dc.contributor.author","Bajo, Ken-ichi"],["dc.contributor.author","Bejach, Laure"],["dc.contributor.author","Bizzarro, Martin"],["dc.contributor.author","Bonal, Lydie"],["dc.contributor.author","Bouvier, Audrey"],["dc.contributor.author","Carlson, Richard W."],["dc.contributor.author","Chaussidon, Marc"],["dc.contributor.author","Choi, Byeon-Gak"],["dc.contributor.author","Cody, George D."],["dc.contributor.author","Dartois, Emmanuel"],["dc.contributor.author","Dauphas, Nicolas"],["dc.contributor.author","Davis, Andrew M."],["dc.contributor.author","Dazzi, Alexandre"],["dc.contributor.author","Deniset-Besseau, Ariane"],["dc.contributor.author","Di Rocco, Tommaso"],["dc.contributor.author","Duprat, Jean"],["dc.contributor.author","Fujiya, Wataru"],["dc.contributor.author","Fukai, Ryota"],["dc.contributor.author","Gautam, Ikshu"],["dc.contributor.author","Haba, Makiko K."],["dc.contributor.author","Hashiguchi, Minako"],["dc.contributor.author","Hibiya, Yuki"],["dc.contributor.author","Hidaka, Hiroshi"],["dc.contributor.author","Homma, Hisashi"],["dc.contributor.author","Hoppe, Peter"],["dc.contributor.author","Huss, Gary R."],["dc.contributor.author","Ichida, Kiyohiro"],["dc.contributor.author","Iizuka, Tsuyoshi"],["dc.contributor.author","Ireland, Trevor R."],["dc.contributor.author","Ishikawa, Akira"],["dc.contributor.author","Ito, Motoo"],["dc.contributor.author","Itoh, Shoichi"],["dc.contributor.author","Kamide, Kanami"],["dc.contributor.author","Kawasaki, Noriyuki"],["dc.contributor.author","David Kilcoyne, A. L."],["dc.contributor.author","Kita, Noriko T."],["dc.contributor.author","Kitajima, Kouki"],["dc.contributor.author","Kleine, Thorsten"],["dc.contributor.author","Komatani, Shintaro"],["dc.contributor.author","Komatsu, Mutsumi"],["dc.contributor.author","Krot, Alexander N."],["dc.contributor.author","Liu, Ming-Chang"],["dc.contributor.author","Martins, Zita"],["dc.contributor.author","Masuda, Yuki"],["dc.contributor.author","Mathurin, Jérémie"],["dc.contributor.author","McKeegan, Kevin D."],["dc.contributor.author","Montagnac, Gilles"],["dc.contributor.author","Morita, Mayu"],["dc.contributor.author","Mostefaoui, Smail"],["dc.contributor.author","Motomura, Kazuko"],["dc.contributor.author","Moynier, Frédéric"],["dc.contributor.author","Nakai, Izumi"],["dc.contributor.author","Nguyen, Ann N."],["dc.contributor.author","Ohigashi, Takuji"],["dc.contributor.author","Okumura, Taiga"],["dc.contributor.author","Onose, Morihiko"],["dc.contributor.author","Pack, Andreas"],["dc.contributor.author","Park, Changkun"],["dc.contributor.author","Piani, Laurette"],["dc.contributor.author","Qin, Liping"],["dc.contributor.author","Quirico, Eric"],["dc.contributor.author","Remusat, Laurent"],["dc.contributor.author","Russell, Sara S."],["dc.contributor.author","Sakamoto, Naoya"],["dc.contributor.author","Sandford, Scott A."],["dc.contributor.author","Schönbächler, Maria"],["dc.contributor.author","Shigenaka, Miho"],["dc.contributor.author","Suga, Hiroki"],["dc.contributor.author","Tafla, Lauren"],["dc.contributor.author","Takahashi, Yoshio"],["dc.contributor.author","Takeichi, Yasuo"],["dc.contributor.author","Tamenori, Yusuke"],["dc.contributor.author","Tang, Haolan"],["dc.contributor.author","Terada, Kentaro"],["dc.contributor.author","Terada, Yasuko"],["dc.contributor.author","Usui, Tomohiro"],["dc.contributor.author","Verdier-Paoletti, Maximilien"],["dc.contributor.author","Wada, Sohei"],["dc.contributor.author","Wadhwa, Meenakshi"],["dc.contributor.author","Wakabayashi, Daisuke"],["dc.contributor.author","Walker, Richard J."],["dc.contributor.author","Yamashita, Katsuyuki"],["dc.contributor.author","Yamashita, Shohei"],["dc.contributor.author","Yin, Qing-Zhu"],["dc.contributor.author","Yokoyama, Tetsuya"],["dc.contributor.author","Yoneda, Shigekazu"],["dc.contributor.author","Young, Edward D."],["dc.contributor.author","Yui, Hiroharu"],["dc.contributor.author","Zhang, Ai-Cheng"],["dc.contributor.author","Abe, Masanao"],["dc.contributor.author","Miyazaki, Akiko"],["dc.contributor.author","Nakato, Aiko"],["dc.contributor.author","Nakazawa, Satoru"],["dc.contributor.author","Nishimura, Masahiro"],["dc.contributor.author","Okada, Tatsuaki"],["dc.contributor.author","Saiki, Takanao"],["dc.contributor.author","Tanaka, Satoshi"],["dc.contributor.author","Terui, Fuyuto"],["dc.contributor.author","Tsuda, Yuichi"],["dc.contributor.author","Watanabe, Sei-ichiro"],["dc.contributor.author","Yada, Toru"],["dc.contributor.author","Yogata, Kasumi"],["dc.contributor.author","Yoshikawa, Makoto"],["dc.contributor.author","Nakamura, Tomoki"],["dc.contributor.author","Naraoka, Hiroshi"],["dc.contributor.author","Noguchi, Takaaki"],["dc.contributor.author","Okazaki, Ryuji"],["dc.contributor.author","Sakamoto, Kanako"],["dc.contributor.author","Tachibana, Shogo"],["dc.contributor.author","Yurimoto, Hisayoshi"],["dc.date.accessioned","2022-08-16T12:56:52Z"],["dc.date.available","2022-08-16T12:56:52Z"],["dc.date.issued","2022-08-09"],["dc.date.updated","2022-08-14T02:44:07Z"],["dc.description.abstract","AbstractWe have conducted a NanoSIMS-based search for presolar material in samples recently returned from C-type asteroid Ryugu as part of JAXA's Hayabusa2 mission. We report the detection of all major presolar grain types with O- and C-anomalous isotopic compositions typically identified in carbonaceous chondrite meteorites: 1 silicate, 1 oxide, 1 O-anomalous supernova grain of ambiguous phase, 38 SiC, and 16 carbonaceous grains. At least two of the carbonaceous grains are presolar graphites, whereas several grains with moderate C isotopic anomalies are probably organics. The presolar silicate was located in a clast with a less altered lithology than the typical extensively aqueously altered Ryugu matrix. The matrix-normalized presolar grain abundances in Ryugu are \r\n \r\n\r\n\r\n 4.8−2.6+4.7\r\n \r\n ppm for O-anomalous grains, \r\n \r\n\r\n\r\n 25−5+6\r\n \r\n ppm for SiC grains, and \r\n \r\n\r\n\r\n 11−3+5\r\n \r\n ppm for carbonaceous grains. Ryugu is isotopically and petrologically similar to carbonaceous Ivuna-type (CI) chondrites. To compare the in situ presolar grain abundances of Ryugu with CI chondrites, we also mapped Ivuna and Orgueil samples and found a total of 15 SiC grains and 6 carbonaceous grains. No O-anomalous grains were detected. The matrix-normalized presolar grain abundances in the CI chondrites are similar to those in Ryugu: \r\n \r\n\r\n\r\n 23−6+7\r\n \r\n ppm SiC and \r\n \r\n\r\n\r\n 9.0−3.6+5.4\r\n \r\n ppm carbonaceous grains. Thus, our results provide further evidence in support of the Ryugu–CI connection. They also reveal intriguing hints of small-scale heterogeneities in the Ryugu samples, such as locally distinct degrees of alteration that allowed the preservation of delicate presolar material."],["dc.description.sponsorship","NASA"],["dc.description.sponsorship","NASA"],["dc.identifier.doi","10.3847/2041-8213/ac83bd"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/112750"],["dc.language.iso","en"],["dc.relation.eissn","2041-8213"],["dc.relation.issn","2041-8205"],["dc.rights","CC BY 4.0"],["dc.rights.uri","http://creativecommons.org/licenses/by/4.0/"],["dc.title","Presolar Stardust in Asteroid Ryugu"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

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[["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Scientific Reports"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Guy, Sisma-Ventura"],["dc.contributor.author","Thomas, Tütken"],["dc.contributor.author","Irit, Zohar"],["dc.contributor.author","Andreas, Pack"],["dc.contributor.author","Dorit, Sivan"],["dc.contributor.author","Omri, Lernau"],["dc.contributor.author","Ayelet, Gilboa"],["dc.contributor.author","Guy, Bar-Oz"],["dc.date.accessioned","2020-12-10T18:10:12Z"],["dc.date.available","2020-12-10T18:10:12Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1038/s41598-018-32468-1"],["dc.identifier.eissn","2045-2322"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15448"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/73886"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.notes.intern","Merged from goescholar"],["dc.relation.orgunit","Fakultät für Geowissenschaften und Geographie"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0/"],["dc.title","Tooth oxygen isotopes reveal Late Bronze Age origin of Mediterranean fish aquaculture and trade"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]