U-Pb dating reveals multiple Paleoproterozoic orogenic events (Hamersley orogenic cycle) along the southern Pilbara margin (Australia) spanning the onset of atmospheric oxygenation

Autor: Birger Rasmussen, Jian-wei Zi, Janet Muhling

Publikováno v: Geology. 50:959-963

The early Paleoproterozoic was a time of unprecedented change in Earth's climate and surface environment. The key to resolving some of the controversies surrounding the timing and causes of these changes lies with supracrustal sequences, such as the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aab51f054018d05a490f9ed004fe8e81
https://doi.org/10.1130/g50010.1

Organic carbon generation in 3.5-billion-year-old basalt-hosted seafloor hydrothermal vent systems

Autor: Birger Rasmussen, Janet Muhling

Publikováno v: Science Advances. 9

Carbon is the key element of life, and its origin in ancient sedimentary rocks is central to questions about the emergence and early evolution of life. The oldest well-preserved carbon occurs with fossil-like structures in 3.5-billion-year-old black

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f9a79d3c14f1c437a6a0bc3a1cf1f6d3
https://doi.org/10.1126/sciadv.add7925

Oceanic nutrient rise and the late Miocene inception of Pacific oxygen-deficient zones

Autor: Woodward W. Fischer, Yuwei Wang, Haojia Abby Ren, Alexandra Auderset, Xingchen Wang, Gerald H. Haug, Zhan Su, Daniel M. Sigman, Alfredo Martínez-García, Yige Zhang, Birger Rasmussen, Alex L. Sessions

Publikováno v: Proceedings of the National Academy of Sciences of the United States of America, 119 (45)
Proceedings of the National Academy of Sciences of the United States of America

The modern Pacific Ocean hosts the largest oxygen-deficient zones (ODZs), where oxygen concentrations are so low that nitrate is used to respire organic matter. The history of the ODZs may offer key insights into ocean deoxygenation under future glob

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a8646641503c626e7ef2fbbf929d20e
https://hdl.handle.net/20.500.11850/580810

Refining the Paleoproterozoic tectonothermal history of the Penokean Orogen: New U-Pb age constraints from the Pembine-Wausau terrane, Wisconsin, USA

Autor: Birger Rasmussen, Jian-Wei Zi, Stephen Sheppard, Janet R. Muhling

Publikováno v: GSA Bulletin. 134:776-790

An enduring problem in the assembly of Laurentia is uncertainty about the nature and timing of magmatism, deformation, and metamorphism in the Paleoproterozoic Wisconsin magmatic terranes, which have been variously interpreted as an intra-oceanic arc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9f1b8e192a66e32de78e85d54c4a8243
https://doi.org/10.1130/b36114.1

Apatite nanoparticles in 3.46–2.46 Ga iron formations: Evidence for phosphorus-rich hydrothermal plumes on early Earth

Autor: Alexandra Suvorova, Woodward W. Fischer, Janet R. Muhling, Birger Rasmussen

Publikováno v: Geology. 49:647-651

Phosphorus is an essential nutrient that is thought to have regulated primary productivity in global oceans after the advent of oxygenic photosynthesis. The prime source of seawater phosphorus is regarded to be continental weathering of phosphate min

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5113b16636b3c4ab7c72c4465dbce81b
https://doi.org/10.1130/g48374.1