Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Kaarel Mänd"'
Autor:
Weiduo Hao, Kaarel Mänd, Yuhao Li, Daniel S. Alessi, Peeter Somelar, Mathieu Moussavou, Alexander E. Romashkin, Aivo Lepland, Kalle Kirsimäe, Noah J. Planavsky, Kurt O. Konhauser
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-6 (2021)
Expanded phosphorus availability possibly triggered a marine bioproduction boom after 2.3 billion years ago, but its delivery mechanisms remain unclear. Here we propose a kaolinite shuttle which efficiently adsorbs phosphorus in continental weatherin
Externí odkaz:
https://doaj.org/article/cd36d9f5edad498a876bcb1e49ccae2b
Autor:
Hao Yan, Dao-Hui Pi, Shao-Yong Jiang, Jingwen Mao, Lingang Xu, Xiuqing Yang, Weiduo Hao, Kaarel Mänd, Long Li, Kurt O. Konhauser, Leslie J. Robbins
Publikováno v:
Geochimica et Cosmochimica Acta. 325:65-86
Autor:
Yuhao Li, Changle Wang, Qiang Ke, Leslie J. Robbins, Kurt O. Konhauser, Mingguo Zhai, Zidong Peng, Weiduo Hao, Xiaoxue Tong, Lianchang Zhang, Kaarel Mänd
Publikováno v:
Economic Geology. 116:1575-1597
The late Neoarchean, ~2.53 to 2.51 Ga Dagushan banded iron formation (BIF), is a typical Algoma-type BIF located in the northeast part of the North China craton. Despite having undergone upper greenschist to lower amphibolite facies metamorphism, the
Autor:
Kaarel Mänd, Noah J. Planavsky, Susannah M. Porter, Leslie J. Robbins, Changle Wang, Timmu Kreitsmann, Kärt Paiste, Päärn Paiste, Alexander E. Romashkin, Yulia E. Deines, Kalle Kirsimäe, Aivo Lepland, Kurt O. Konhauser
Accepted manuscript version, licensed CC BY-NC-ND 4.0. It has commonly been proposed that the development of complex life is tied to increases in atmospheric oxygenation. However, there is a conspicuous gap in time between the oxygenation of the atmo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f468c0414fe3ebe25058e97d177573e
https://hdl.handle.net/10037/24808
https://hdl.handle.net/10037/24808
Autor:
Kurt O. Konhauser, Huan Cui, Dao-Hui Pi, Kaarel Mänd, Weiduo Hao, Long Li, Shao-Yong Jiang, Hao Yan, Leslie J. Robbins, Noah J. Planavsky
Publikováno v:
Geochimica et Cosmochimica Acta. 283:1-21
Several Late Devonian sedimentary successions host pyrite with highly positive sulfur isotope values (δ34Spyrite). These anomalous values have been linked to marine anoxia, low sulfate concentrations in seawater, or aerobic re-oxidation of dissolved
Ancient iron formations - iron and silica-rich chemical sedimentary rocks that formed throughout the Precambrian eons - provide a significant part of the evidence for the modern scientific understanding of palaeoenvironmental conditions in Archaean (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::876c60212d739412cdcab8f497828847
https://doi.org/10.1017/9781108993791
https://doi.org/10.1017/9781108993791
Autor:
Prisca Grandin, Dylan T. Wilmeth, Kimberly D. Myers, Kurt O. Konhauser, Stefan V. Lalonde, Kaarel Mänd, Mark A. van Zuilen
Publikováno v:
Geobiology. 20(2)
Microbial mats floating within multiple hydrothermally sourced streams in El Tatio, Chile, frequently exhibit brittle siliceous crusts (~1 mm thick) above the air-water interface. The partially silicified mats contain a diverse assemblage of microbia
Autor:
Qin Huang, Dao-Hui Pi, Shao-Yong Jiang, Deng Liu, Hao Yan, Kaarel Mänd, Kalle Kirsimäe, Brendan Bishop, Leslie J. Robbins, Shan-Shan Yang
Publikováno v:
Chemical Geology. 606:120992
Autor:
Qiang Shi, Long Chen, Wen-Jun Zhu, Huaqing Bai, Meng Tian, Dong-Ge Wang, Yuchong Wang, Hongwei Kuang, Yi Wei, Liao-Yuan Song, Zi-Liang Liu, Qing-Ming Wu, Yi Zhang, Kaarel Mänd, Da-Wei Qiao, Yongqing Liu, Jian Li
Publikováno v:
Journal of Palaeogeography. 10
The origin process of manganese ores remains unsolved worldwide. Exploring the origins of stromatolites that contain manganese may be a key to deciphering the sedimentary environments and metallogenic processes of these deposits. However, only a few
Autor:
Rui Jiang, Fengjie Li, Kaarel Mänd, Wei Yang, Hui Jin, Fang Shen, Yue Zhou, Ziliang Liu, Liang Yue, Minghe Zhang
Publikováno v:
Arabian Journal of Geosciences. 14
The clastic rocks of the late Triassic Xujiahe Formation in the Sichuan Basin of southwestern China are typical unconventional tight sandstone reservoirs with proven natural gas reserves of up to one trillion cubic meters. In particular, the Xu-6 mem