Search Results - "Zumberge, Alex"

Reappraisal of hydrocarbon biomarkers in Archean rocks by French, Katherine L., Hallmann, Christian, Hope, Janet M., Schoon, Petra L., Zumberge, J. Alex, Hoshino, Yosuke, Peters, Carl A., George, Simon C., Love, Gordon D., Brocks, Jochen J., Buick, Roger, Summons, Roger E.

“…Significance The advent of oxygenic photosynthesis set the stage for the evolution of complex life on an oxygenated planet, but it is unknown when this…”
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Demosponge steroid biomarker 26-methylstigmastane provides evidence for Neoproterozoic animals by Zumberge, J. Alex, Love, Gordon D., Cárdenas, Paco, Sperling, Erik A., Gunasekera, Sunithi, Rohrssen, Megan, Grosjean, Emmanuelle, Grotzinger, John P., Summons, Roger E.

“…Sterane biomarkers preserved in ancient sedimentary rocks hold promise for tracking the diversification and ecological expansion of eukaryotes. The earliest…”
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Tracking the rise of eukaryotes to ecological dominance with zinc isotopes by Isson, Terry T., Love, Gordon D., Dupont, Christopher L., Reinhard, Christopher T., Zumberge, Alex J., Asael, Dan, Gueguen, Bleuenn, McCrow, John, Gill, Ben C., Owens, Jeremy, Rainbird, Robert H., Rooney, Alan D., Zhao, Ming‐Yu, Stueeken, Eva E., Konhauser, Kurt O., John, Seth G., Lyons, Timothy W., Planavsky, Noah J.

“…The biogeochemical cycling of zinc (Zn) is intimately coupled with organic carbon in the ocean. Based on an extensive new sedimentary Zn isotope record across…”
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Organic geochemistry of the middle Paleozoic Ora Formation in Iraq: Implications for source rock assessment and hydrocarbon potentiality by Rahma S, Al-Auqadi, Alkhafaji, Mohamed W., Al-Juboury, Ali I., Zumberge, Alex, Alarifi, Nasir, Jarvie, Dan, Zanoni, Giovanni, Rowe, Harry

“…The Ora Formation (late Devonian–early Carboniferous) is thought to be a potential source rocks for the Paleozoic petroleum system of Iraq. The source…”
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Geochemical Analysis of Two Samples of Bitumen from Jars Discovered on Muhut and Masirah Islands (Oman) by Connan, Jacques, H. Engel, Michael, Jackson, Robert B., Priestman, Seth, Vosmer, Tom, Zumberge, Alex

“…Two samples of bitumen were obtained, one from a torpedo jar (c. 3rd–8th C. AD) from Masirah island and one from a Tunisian jar (c. 18th C. AD) from Muhut…”
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Free and kerogen‐bound biomarkers from late Tonian sedimentary rocks record abundant eukaryotes in mid‐Neoproterozoic marine communities by Zumberge, J. Alex, Rocher, Don, Love, Gordon D.

“…Lipid biomarker assemblages preserved within the bitumen and kerogen phases of sedimentary rocks from the ca. 780–729 Ma Chuar and Visingsö Groups facilitate…”
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Sources of C30 steroid biomarkers in Neoproterozoic–Cambrian rocks and oils by Love, Gordon D., Zumberge, J. Alex, Cárdenas, Paco, Sperling, Erik A., Rohrssen, Megan, Grosjean, Emmanuelle, Grotzinger, John P., Summons, Roger E.

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Production Allocation: Rosetta Stone or Red Herring? Best Practices for Understanding Produced Oils in Resource Plays by Craig D. Barrie, Catherine M. Donohue, J. Alex Zumberge, John E. Zumberge

“…The production of crude oil from resource plays has increased enormously over the past decade. In the USA, around 63% of total output in 2019 was from…”
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Absence of biomarker evidence for early eukaryotic life from the Mesoproterozoic Roper Group: Searching across a marine redox gradient in mid‐Proterozoic habitability by Nguyen, Kevin, Love, Gordon D., Zumberge, J. Alex, Kelly, Amy E., Owens, Jeremy D., Rohrssen, Megan K., Bates, Steven M., Cai, Chunfang, Lyons, Timothy W.

“…By about 2.0 billion years ago (Ga), there is evidence for a period best known for its extended, apparent geochemical stability expressed famously in the…”
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Bitumens from Tell Yarmuth (Israel) from 2800 BCE to 1100 BCE: A unique case history for the study of degradation effects on the Dead Sea bitumen by Connan, Jacques, Adelsberger, Katherine A., Engel, Michael H., Zumberge, Alex

“…•Archaeological samples from the Early Bronze to Iron Age Ia from Tell Yarmuth (Israel) were selected for a geochemical study.•Samples may be allocated into…”
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Sources of C 30 steroid biomarkers in Neoproterozoic-Cambrian rocks and oils by Love, Gordon D, Zumberge, J Alex, Cárdenas, Paco, Sperling, Erik A, Rohrssen, Megan, Grosjean, Emmanuelle, Grotzinger, John P, Summons, Roger E

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Geochemical analysis of bituminous samples from the Pre-Pottery Neolithic B site of Nahal Efe (Northern Negev, Israel): Earliest evidence in the region and an example of alteration of the Dead Sea bitumen by Connan, Jacques, Borrell, Ferran, Vardi, Jacob, Wolff, Samuel, Ortiz, Steven M., Engel, Michael, Gley, Renaud, Zumberge, Alex

“…•36 bituminous samples from Nahal Efe (Israel) were analysed by geochemical techniques.•All samples contain bitumen from the Dead Sea.•Earliest evidence of…”
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Geochemical analysis of bitumen from West Asian torpedo jars from the c. 8th century Phanom-Surin shipwreck in Thailand by Connan, Jacques, Priestman, Seth, Vosmer, Tom, Komoot, Abhirada, Tofighian, Hossein, Ghorbani, Buyuk, Engel, Michael H., Zumberge, Alex, van de Velde, Thomas

“…Organic samples obtained from the interior of fragments of five different torpedo jar vessels found onboard the c. 8th century Phanom-Surin shipwreck…”
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A geochemical study of bitumen residues on ceramics excavated from Early Bronze age graves (3000–2900 BCE) at Başur Höyük in SE Turkey by Connan, Jacques, Kavak, Orhan, Sağlamtimur, Haluk, Engel, Michael, Zumberge, Alex, Zumberge, John

“…•Black spots on ceramics from graves at Başur Höyük (SE Turkey) are bitumen residues.•The source of bitumen was not identified.•Bitumen occurrence is a…”
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Geochemistry and origin of bituminous samples of Kuriki Höyük (SE Turkey) from 4000 BCE to 200 CE: Comparison with Kavuşan Höyük, Hakemi Use and Salat Tepe by Connan, Jacques, Genç, Elif, Kavak, Orhan, Engel, Michael H., Zumberge, Alex

“…Twelve samples of organic mixtures collected from floors and potsherds in different areas of Kuriki Höyük (SE Turkey) were analyzed by geochemical techniques…”
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Geochemical study of the luting and coating of medieval watercraft from the ship timbers discovered in the citadel of al-Balīd, Oman: Composition and origin by Connan, Jacques, Ghidoni, Alessandro, Mezzatesta, Elodie, Joliot, Céline, Mathe, Carole, Vosmer, Tom, Gley, Renaud, Bihannic, Isabelle, Pavan, Alexia, Engel, Michael H., Zumberge, Alex

“…•Bitumen samples of sewn-boats from al-Balid (Oman) were analyzed by geochemical techniques.•They contain bitumen originating from Iran, oil and resins (dammar…”
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