Results 11 to 20 of about 136,179 (257)

Effects of rheological stratification and elasticity of lithosphere on subduction initiation

Frontiers in Earth Science, 2022
The breaking and bending of rigid and elastic lithosphere was probably essential for the initiation of plate subduction, although how this occurred is still poorly understood.
Ikuo Katayama, Masaki Yoshida, Ken-ichi Hirauchi   +2 more
doaj   +1 more source

Setting the geological scene for the origin of life and continuing open questions about its emergence

Frontiers in Astronomy and Space Sciences, 2023
The origin of life is one of the most fundamental questions of humanity. It has been and is still being addressed by a wide range of researchers from different fields, with different approaches and ideas as to how it came about.
Frances Westall, André Brack, Alberto G. Fairén, Alberto G. Fairén, Mitchell D. Schulte   +4 more
doaj   +1 more source

When lingulid brachiopods became infaunal(?) – perspectives from the morphological and anatomical information [PDF]

Estonian Journal of Earth Sciences, 2023
Morphology usually serves as an effective proxy for functional ecology, and the evaluation of morphological, anatomical, and ecological changes allows for a deeper understanding of the nature of diversification and macroevolution.
Yue Liang, Luke C. Strotz, Timothy P. Topper, Lars E. Holmer, Graham E. Budd, Yanlong Chen, Ruisen Fang, Yazhou Hu, Zhifei Zhang   +8 more
doaj   +1 more source

Multi-proxy speleothem-based reconstruction of mid-MIS 3 climate in South Africa [PDF]

Climate of the Past, 2023
The southern coast of South Africa displays a highly dynamical climate as it is at the convergence of the Atlantic and Indian oceans, and it is located near the subtropical/temperate zone boundary with seasonal influence of easterlies and westerlies. The
J. Maccali, J. Maccali, J. Maccali, A. N. Meckler, A. N. Meckler, A. N. Meckler, S.-E. Lauritzen, S.-E. Lauritzen, S.-E. Lauritzen, T. Brekken, H. A. Rokkan, A. Fernandez, Y. Krüger, J. Adigun, S. Affolter, M. Leuenberger   +15 more
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Late Ordovician gastropods from the Zhaolaoyu Formation in the southwestern margin of the North China Platform [PDF]

Estonian Journal of Earth Sciences, 2023
The Ordos Basin is located in the western part of the North China Platform and is the second largest sedimentary basin in China; the basin has a huge thickness of the Early Palaeozoic marine deposits, especially the Ordovician ones.
Rao Fu, Yue Liang, Lars E. Holmer, Yutong Lu, Yi Xiang, Yazhou Hu, Zhifei Zhang   +6 more
doaj   +1 more source

Reconstruction of the first consumer-driven marine ecosystem on Earth, perspectives from early Cambrian small skeletal fossils from China [PDF]

Estonian Journal of Earth Sciences, 2023
Biological activity was the major triggering factor driving Earth’s organic and inorganic cycles across the biosphere, lithosphere, and atmosphere. A key question in the evolution of Earth’s ecosystem is when and how different animals emerged and ...
Zhifei Zhang, Yue Liang, Fan Liu, Yazhou Hu, Lars E. Holmer   +4 more
doaj   +1 more source

Silicate-, Magnesium Ion-, and Urea-Induced Prebiotic Phosphorylation of Uridine via Pyrophosphate; Revisiting the Hot Drying Water Pool Scenario

Life, 2020
The availability of nucleotides on the early Earth is of great significance for the origin of a self-replicating system capable of undergoing evolution. We hereby report the successful phosphorylation reactions of the nucleoside uridine under heating in ...
Maheen Gull, Arthur Omran, Tian Feng, Matthew A. Pasek   +3 more
doaj   +1 more source

Silica Precipitation in a Wet–Dry Cycling Hot Spring Simulation Chamber

Life, 2020
Terrestrial hot springs have emerged as strong contenders for sites that could have facilitated the origin of life. Cycling between wet and dry conditions is a key feature of these systems, which can produce both structural and chemical complexity within
Andrew Gangidine, Jeff R. Havig, Jeffrey S. Hannon, Andrew D. Czaja   +3 more
doaj   +1 more source

Evaluation of Satellite Precipitation Estimates over the South West Pacific Region

Remote Sensing, 2021
Rainfall estimation over the Pacific region is difficult due to the large distances between rain gauges and the high convection nature of many rainfall events. This study evaluates space-based rainfall observations over the South West Pacific Region from
Ashley Wild, Zhi-Weng Chua, Yuriy Kuleshov   +2 more
doaj   +1 more source

Behaviourally modern humans in coastal southern Africa experienced an increasingly continental climate during the transition from Marine Isotope Stage 5 to 4

Frontiers in Earth Science, 2023
Linking human technological and behavioural advances to environmental changes is challenging, as it requires a robust understanding of past climate at local scales.
Ozan Mert Göktürk, Ozan Mert Göktürk, Margit H. Simon, Margit H. Simon, Margit H. Simon, Stefan Pieter Sobolowski, Stefan Pieter Sobolowski, Zhongshi Zhang, Zhongshi Zhang, Willem Van Der Bilt, Pål Tore Mørkved, William J. D’Andrea, Karen L. van Niekerk, Karen L. van Niekerk, Christopher S. Henshilwood, Christopher S. Henshilwood, Simon J. Armitage, Simon J. Armitage, Eystein Jansen, Eystein Jansen, Eystein Jansen   +20 more
doaj   +1 more source