Duda, Jan-Peter

[["dc.bibliographiccitation.firstpage","48"],["dc.bibliographiccitation.journal","Precambrian Research"],["dc.bibliographiccitation.lastpage","62"],["dc.bibliographiccitation.volume","255"],["dc.contributor.author","Duda, Jan-Peter"],["dc.contributor.author","Blumenberg, Martin"],["dc.contributor.author","Thiel, Volker"],["dc.contributor.author","Simon, Klaus"],["dc.contributor.author","Zhu, Maoyan"],["dc.contributor.author","Reitner, Joachim"],["dc.date.accessioned","2018-11-07T09:31:39Z"],["dc.date.available","2018-11-07T09:31:39Z"],["dc.date.issued","2014"],["dc.description.abstract","Despite the importance of palaeoecosystems with Ediacara-type fossils for the early evolution of metazoans, only little is known about the interplay of geological and biological processes in these environments. The reason is that sedimentary structures, biogenic structures and (bio-) geochemical signatures (e.g. hydrocarbon biomarkers) are commonly not well preserved due to the predominance of volcanic and siliciclastic lithologies. The Shibantan Member (Dengying Formation, South China) is one of only few carbonate settings with Ediacara-type organisms worldwide and its lithology promises an excellent preservation of sedimentary fades and (bio-) geochemical signatures. Here we provide the first comprehensive geobiological characterisation of the Shibantan Member in order to reconstruct the interplay between sedimentary and (bio-) geochemical processes and to assess the microbial activities in the palaeoecosystem with Ediacara-type fossils. Fades analyses revealed that carbonate and organic matter were autochthonously formed by (bio-) geochemical processes linked to microbial mats. However, the material was frequently reworked and re-deposited within the same setting (i.e. para-autochthonous) as evidenced by small-scale (hummocky-) cross stratification, erosional contacts, lenticular bedding and load casts. Negative Ce anomalies (Ce/Ce ) and low V/Cr ratios demonstrate that molecular O-2 was present in the water column, whereas characteristic Ni/Co-, V/(V + Ni), and V/Sc ratios suggest the contemporaneous presence of sub- to anoxic water. Taken together, these observations imply a temporarily stratified water body frequently mixed and ventilated by storms. C-13-enrichments in the Shibantan carbonates (delta C-13 = +3.29 to + 3.98 parts per thousand, VPDB) together with C-13-depletions of syngenetic n-alkanes cleaved from the extraction residue using catalytic hydropyrolysis (HyPy; delta C-13 = -31.7 to -363 parts per thousand, VPDB) could indicate a significant withdrawal of C-12 by primary producers that thrived within the mats. At the same time, sulphurised biomarkers in the bitumen and HyPy-pyrolysate hint at organic matter decomposition and concomitant sulphide production by sulphate reducing bacteria. When oxygen was available at the sediment-water interface due to mixing by storms, sulphide oxidising bacteria were possibly temporarily favoured. The results demonstrated that palaeoenvironmental conditions dynamically changed through a complex interplay of biogenic and abiogenic processes. (C) 2014 Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.precamres.2014.09.012"],["dc.identifier.isi","000347578000003"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/31580"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1872-7433"],["dc.relation.issn","0301-9268"],["dc.title","Geobiology of a palaeoecosystem with Ediacara-type fossils: The Shibantan Member (Dengying Formation, South China)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1535"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Biogeosciences"],["dc.bibliographiccitation.lastpage","1548"],["dc.bibliographiccitation.volume","15"],["dc.contributor.author","Duda, Jan-Peter"],["dc.contributor.author","Thiel, Volker"],["dc.contributor.author","Bauersachs, Thorsten"],["dc.contributor.author","Mißbach, Helge"],["dc.contributor.author","Reinhardt, Manuel"],["dc.contributor.author","Schäfer, Nadine"],["dc.contributor.author","Van Kranendonk, Martin J."],["dc.contributor.author","Reitner, Joachim"],["dc.date.accessioned","2019-07-09T11:45:21Z"],["dc.date.available","2019-07-09T11:45:21Z"],["dc.date.issued","2018"],["dc.description.abstract","Archaean hydrothermal chert veins commonly contain abundant organic carbon of uncertain origin (abiotic vs. biotic). In this study, we analysed kerogen contained in a hydrothermal chert vein from the ca. 3.5 Ga Dresser Formation (Pilbara Craton, Western Australia). Catalytic hydropyrolysis (HyPy) of this kerogen yielded n-alkanes up to n-C22, with a sharp decrease in abundance beyond n-C18. This distribution ( n-C18) is very similar to that observed in HyPy products of recent bacterial biomass, which was used as reference material, whereas it differs markedly from the unimodal distribution of abiotic compounds experimentally formed via Fischer–Tropsch-type synthesis. We therefore propose that the organic matter in the Archaean chert veins has a primarily microbial origin. The microbially derived organic matter accumulated in anoxic aquatic (surface and/or subsurface) environments and was then assimilated, redistributed and sequestered by the hydrothermal fluids (“hydrothermal pump hypothesis”)"],["dc.identifier.doi","10.5194/bg-15-1535-2018"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15113"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59212"],["dc.language.iso","en"],["dc.relation.issn","1726-4189"],["dc.relation.orgunit","Abteilung Geobiologie"],["dc.subject.ddc","550"],["dc.title","Ideas and perspectives: hydrothermally driven redistribution and sequestration of early Archaean biomass – the “hydrothermal pump hypothesis”"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","165"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","International Journal of Astrobiology"],["dc.bibliographiccitation.lastpage","175"],["dc.bibliographiccitation.volume","15"],["dc.contributor.author","Schmidt, B. C."],["dc.contributor.author","Mißbach, Helge"],["dc.contributor.author","Duda, Jan-Peter"],["dc.contributor.author","Luensdorf, Nils Keno"],["dc.contributor.author","Thiel, Volker"],["dc.date.accessioned","2020-12-10T15:22:23Z"],["dc.date.available","2020-12-10T15:22:23Z"],["dc.date.issued","2016"],["dc.description.abstract","Lipid biomarkers have been extensively applied for tracing organisms and evolutionary processes through Earth's history. They have become especially important for the reconstruction of early life on Earth and, potentially, for the detection of life in the extraterrestrial realm. However, it is not always clear how exactly biomarkers reflect a paleoecosystem as their preservation may be influenced by increasing temperatures (T) and pressures (P) during burial. While a number of biomarker indices reflecting thermal maturity have been established, it is often less well constrained to which extent biomarker ratios used for paleoreconstruction are compromised by T and P processes. In this study we conducted hydrous pyrolysis of Green River Shale (GRS) kerogen in gold capsules for 2-2400 h at 300 degrees C to assess the maturation behaviour of several compounds used as life tracers and for the reconstruction of paleoenvironments (n-alkanes, pristane, phytane, gammacerane, steranes, hopanes and cheilanthanes). Lignite samples were maturated in parallel with the GRS kerogen to obtain exact vitrinite reflectance data at every sampling point. Our experiment confirms the applicability of biomarker-based indices and ratios as maturity indicators (e.g. total cheilanthanes/hopanes ratio; sterane and hopane isomerization indices). However, several biomarker ratios that are commonly used for paleoreconstructions (e.g. pristane/phytane, pristane/n-C-17, phytane/n-C-18 and total steranes/hopanes) were considerably affected by differences in the thermal degradation behaviour of the respective compounds. Short-term experiments (48 h) performed at 400 degrees C also revealed that biomarkers >C-15 (especially steranes and hopanes) and biological' chain length preferences for n-alkanes are vanished at a vitrinite reflectance between 1.38 and 1.83% R-O. Our data highlight that thermal taphonomy' effects have to be carefully considered in the interpretation of biomarkers in ancient rocks and, potentially, extraterrestrial materials."],["dc.identifier.doi","10.1017/S1473550416000069"],["dc.identifier.eissn","1475-3006"],["dc.identifier.isi","000381033400002"],["dc.identifier.issn","1473-5504"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/73383"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1475-3006"],["dc.relation.issn","1473-5504"],["dc.title","Testing the preservation of biomarkers during experimental maturation of an immature kerogen"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","87"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Carbonates and Evaporites"],["dc.bibliographiccitation.lastpage","99"],["dc.bibliographiccitation.volume","31"],["dc.contributor.author","Duda, Jan-Peter"],["dc.contributor.author","Zhu, Maoyan"],["dc.contributor.author","Reitner, Joachim"],["dc.date.accessioned","2018-11-07T10:17:48Z"],["dc.date.available","2018-11-07T10:17:48Z"],["dc.date.issued","2016"],["dc.description.abstract","The Ediacaran Shibantan Member (Dengying Formation, South China) is characterised by a black, laminated bituminous limestone facies with diverse Ediacara-type organisms and trace fossils. However, still little is known about the evolution of the Shibantan basin and its sedimentary dynamics. A detailed sedimentological characterisation revealed that the Shibantan Member was deposited on a carbonate ramp system linked to an intra-platform basin. Evaporitic dolomites of the Hamajing Member (representing sub- to supratidal inner ramp environments above fair weather wave base) are sharply overlain by black, laminated limestones of the lower Shibantan Member, representing a subtidal lower- to middle ramp environment close to the storm wave base. This facies-shift implies a sudden local deepening event, probably due to a tectonically induced increase in subsidence. The Shibantan basin was subsequently filled as evidenced by the gradual transition into dark wavy dolomites deposited in a subtidal middle-ramp environment (i.e. between storm- and fair weather wave bases) and, eventually, the upper Dengying Formation (i.e. the Baimatuo Member), which represents the same depositional environments as the Hamajing Member. Sedimentation in the Shibantan basin was highly dynamic as evidenced by a distinct slumping horizon and mass-flow deposits, partly possibly due to synsedimentary tectonic processes. A microbial mat associated biota which includes Ediacara-type fossils is restricted to the lower Shibantan Member. The close spatial relationship between allochthonous event deposits and autochthonous fossil associations in this setting implies that the event deposits were not only important for the preservation of fossils, but probably also for the supply of nutrients."],["dc.identifier.doi","10.1007/s13146-015-0243-8"],["dc.identifier.isi","000371164000009"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/41295"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1878-5212"],["dc.relation.issn","0891-2556"],["dc.title","Depositional dynamics of a bituminous carbonate facies in a tectonically induced intra-platform basin: the Shibantan Member (Dengying Formation, Ediacaran Period)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","237"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Geobiology"],["dc.bibliographiccitation.lastpage","251"],["dc.bibliographiccitation.volume","16"],["dc.contributor.author","Reinhardt, Manuel"],["dc.contributor.author","Duda, Jan-Peter"],["dc.contributor.author","Blumenberg, Martin"],["dc.contributor.author","Ostertag-Henning, Christian"],["dc.contributor.author","Reitner, Joachim"],["dc.contributor.author","Heim, Christine N."],["dc.contributor.author","Thiel, Volker"],["dc.date.accessioned","2019-07-22T14:14:22Z"],["dc.date.available","2019-07-22T14:14:22Z"],["dc.date.issued","2018"],["dc.description.abstract","Fossil derivatives of isorenieratene, an accessory pigment in brown-colored green sulfur bacteria, are often used as tracers for photic zone anoxia through Earth's history, but their diagenetic behavior is still incompletely understood. Here, we assess the preservation of isorenieratene derivatives in organic-rich shales (1.5-8.4 wt.% TOC) from two Lower Jurassic anoxic systems (Bächental oil shale, Tyrol, Austria; Posidonia Shale, Baden-Württemberg, Germany). Bitumens and kerogens were investigated using catalytic hydropyrolysis (HyPy), closed-system hydrous pyrolysis (in gold capsules), gas chromatography-mass spectrometry (GC-MS) and gas chromatography combustion isotope ratio-mass spectrometry (GC-C-IRMS). Petrography and biomarkers indicate a syngenetic relationship between bitumens and kerogens. All bitumens contain abundant isorenieratane, diverse complex aromatized isorenieratene derivatives, and a pseudohomologous series of 2,3,6-trimethyl aryl isoprenoids. In contrast, HyPy and mild closed-system hydrous pyrolysis of the kerogens yielded only minor amounts of these compounds. Given the overall low maturity of the organic matter (below oil window), it appears that isorenieratene and its abundant derivatives from the bitumen had not been incorporated into the kerogens. Accordingly, sulfur cross-linking, the key mechanism for sequestration of functionalized lipids into kerogens in anoxic systems, was not effective in the Jurassic environments studied. We explain this by (i) early cyclization/aromatization and (ii) hydrogenation reactions that have prevented effective sulfurization. In addition, (iii) sulfide was locally removed via anoxygenic photosynthesis and efficiently trapped by the reaction with sedimentary iron, as further indicated by elevated iron contents (4.0-8.7 wt.%) and the presence of abundant pyrite aggregates in the rock matrix. Although the combined processes have hampered the kerogen incorporation of isorenieratene and its derivatives, they may have promoted the long-term preservation of these biomarkers in the bitumen fraction via early defunctionalization. This particular taphonomy of aromatic carotenoids has to be considered in studies of anoxic iron-rich environments (e.g., the Proterozoic ocean)."],["dc.identifier.doi","10.1111/gbi.12284"],["dc.identifier.pmid","29569335"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/61823"],["dc.language.iso","en"],["dc.relation.eissn","1472-4669"],["dc.relation.issn","1472-4677"],["dc.relation.orgunit","Abteilung Geobiologie"],["dc.title","The taphonomic fate of isorenieratene in Lower Jurassic shales-controlled by iron?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.contributor.author","Sánchez-Beristain, Francisco"],["dc.contributor.author","Duda, Jan-Peter"],["dc.contributor.author","López-Esquivel Kransksith, Laura"],["dc.contributor.author","García-Barrera, Pedro"],["dc.date.accessioned","2022-12-19T08:05:28Z"],["dc.date.available","2022-12-19T08:05:28Z"],["dc.date.issued","2014"],["dc.description.abstract","Frank Wiese, Mike Reich and Gernot Arp (Eds.), cosy & more ; 39-48"],["dc.identifier.doi","10.3249/WEBDOC-3915"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/118873"],["dc.title","A brief synopsis on the history of sponge research in the Upper Triassic St. Cassian Formation (Dolomites, NE Italy)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","Geobiology"],["dc.contributor.author","Runge, Eric Alexander"],["dc.contributor.author","Mansor, Muammar"],["dc.contributor.author","Kappler, Andreas"],["dc.contributor.author","Duda, Jan-Peter"],["dc.date.accessioned","2022-12-19T08:05:16Z"],["dc.date.available","2022-12-19T08:05:16Z"],["dc.date.issued","2022-12-16"],["dc.description.abstract","Deep-sea hydrothermal systems provide ideal conditions for prebiotic reactions and ancient metabolic pathways and, therefore, might have played a pivotal role in the emergence of life. To understand this role better, it is paramount to examine fundamental interactions between hydrothermal processes, non-living matter, and microbial life in deep time. However, the distribution and diversity of microbial communities in ancient deep-sea hydrothermal systems are still poorly constrained, so evolutionary, and ecological relationships remain unclear. One important reason is an insufficient understanding of the formation of diagnostic microbial biosignatures in such settings and their preservation through geological time. This contribution centers around microbial biosignatures in Precambrian deep-sea hydrothermal sulfide deposits. Intending to provide a valuable resource for scientists from across the natural sciences whose research is concerned with the origins of life, we first introduce different types of biosignatures that can be preserved over geological timescales (rock fabrics and textures, microfossils, mineral precipitates, carbonaceous matter, trace metal, and isotope geochemical signatures). We then review selected reports of biosignatures from Precambrian deep-sea hydrothermal sulfide deposits and discuss their geobiological significance. Our survey highlights that Precambrian hydrothermal sulfide deposits potentially encode valuable information on environmental conditions, the presence and nature of microbial life, and the complex interactions between fluids, micro-organisms, and minerals. It further emphasizes that the geobiological interpretation of these records is challenging and requires the concerted application of analytical and experimental methods from various fields, including geology, mineralogy, geochemistry, and microbiology. Well-orchestrated multidisciplinary studies allow us to understand the formation and preservation of microbial biosignatures in deep-sea hydrothermal sulfide systems and thus help unravel the fundamental geobiology of ancient settings. This, in turn, is critical for reconstructing life's emergence and early evolution on Earth and the search for life elsewhere in the universe."],["dc.identifier.doi","10.1111/gbi.12539"],["dc.identifier.pmid","36524457"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/118871"],["dc.language.iso","en"],["dc.relation","DFG 1450/7-1"],["dc.relation","DFG 1450/3-1"],["dc.relation","DFG 1450/3-2"],["dc.relation.eissn","1472-4669"],["dc.relation.issn","1472-4677"],["dc.relation.orgunit","Abteilung Geobiologie"],["dc.title","Microbial biosignatures in ancient deep-sea hydrothermal sulfides"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.contributor.author","Afÿðsar, Filiz"],["dc.contributor.author","Duda, Jan-Peter"],["dc.contributor.author","Zeller, Michael"],["dc.contributor.author","Verwer, Klaas"],["dc.contributor.author","Westphal, Hildegard"],["dc.contributor.author","Eberli, Gregor P."],["dc.date.accessioned","2022-12-19T08:05:41Z"],["dc.date.available","2022-12-19T08:05:41Z"],["dc.date.issued","2014"],["dc.description.abstract","Frank Wiese, Mike Reich and Gernot Arp (Eds.), cosy & more ; 49-56"],["dc.identifier.doi","10.3249/WEBDOC-3916"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/118875"],["dc.title","First report of sponge rhaxes in the Picún Leufú Formation (Tithonian-Berriasian), Neuquén Basin, Argentina"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.contributor.author","Heller, René"],["dc.contributor.author","Duda, Jan-Peter"],["dc.contributor.author","Winkler, Max"],["dc.contributor.author","Reitner, Joachim"],["dc.contributor.author","Gizon, Laurent"],["dc.date.accessioned","2020-08-03T07:02:12Z"],["dc.date.available","2020-08-03T07:02:12Z"],["dc.date.issued","2020"],["dc.description.abstract","Geological evidence suggests liquid water near the Earth's surface as early as 4.4 gigayears ago when the faint young Sun only radiated about 70 % of its modern power output. At this point, the Earth should have been a global snowball. An extreme atmospheric greenhouse effect, an initially more massive Sun, release of heat acquired during the accretion process of protoplanetary material, and radioactivity of the early Earth material have been proposed as alternative reservoirs or traps for heat. For now, the faint-young-sun paradox persists as one of the most important unsolved problems in our understanding of the origin of life on Earth. Here we use astrophysical models to explore the possibility that the new-born Moon, which formed about 69 million years (Myr) after the ignition of the Sun, generated extreme tidal friction - and therefore heat - in the Hadean and possibly the Archean Earth. We show that the Earth-Moon system has lost about 3e31 J, (99 % of its initial mechanical energy budget) as tidal heat. Tidal heating of roughly 10 W/m^2 through the surface on a time scale of 100 Myr could have accounted for a temperature increase of up to 5 degrees Celsius on the early Earth. This heating effect alone does not solve the faint-young-sun paradox but it could have played a key role in combination with other effects. Future studies of the interplay of tidal heating, the evolution of the solar power output, and the atmospheric (greenhouse) effects on the early Earth could help in solving the faint-young-sun paradox."],["dc.format.extent","21"],["dc.identifier.doi","10.31223/osf.io/9nrwh"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/67504"],["dc.language.iso","en"],["dc.relation.orgunit","Geowissenschaftliches Zentrum"],["dc.relation.orgunit","Max-Planck-Institut für Sonnensystemforschung"],["dc.relation.orgunit","Institut für Astrophysik und Geophysik"],["dc.title","Habitability of the early Earth: Liquid water under a faint young Sun facilitated by strong tidal heating due to a nearby Moon"],["dc.type","preprint"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","Paläontologische Zeitschrift"],["dc.contributor.author","Duda, Jan-Peter"],["dc.contributor.author","König, Hannah"],["dc.contributor.author","Reinhardt, Manuel"],["dc.contributor.author","Shuvalova, Julia"],["dc.contributor.author","Parkhaev, Pavel"],["dc.date.accessioned","2021-12-09T08:18:59Z"],["dc.date.available","2021-12-09T08:18:59Z"],["dc.date.issued","2021"],["dc.identifier.doi","10.1007/s12542-021-00593-4"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/96607"],["dc.language.iso","en"],["dc.relation.issn","0031-0220"],["dc.relation.issn","1867-6812"],["dc.relation.orgunit","Abteilung Geobiologie"],["dc.rights","CC BY 4.0"],["dc.title","Molecular fossils within bitumens and kerogens from the ~ 1 Ga Lakhanda Lagerstätte (Siberia, Russia) and their significance for understanding early eukaryote evolution"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]