Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Achim D Herrmann"'
Publikováno v:
Minerals, Vol 13, Iss 6, p 807 (2023)
The tectonic setting of the southernmost part of the eastern margin of Laurentia during the Blountian tectophase (~472–452 Ma) of the Ordovician Taconic Orogeny remains unresolved. Tephras produced by explosive volcanism during this early phase of
Externí odkaz:
https://doaj.org/article/5ab3af7100cd4a75937e1d17a0254191
Publikováno v:
Geosciences, Vol 13, Iss 3, p 66 (2023)
Syndepositional diagenesis is a complicating factor when interpreting geochemical proxies in carbonate sedimentary environments. Previous studies have suggested that carbonate deposits may preserve the geochemical and isotopic signatures of seawater
Externí odkaz:
https://doaj.org/article/1df20f7ce2de40d0bb7507663455db0d
Publikováno v:
Geosciences, Vol 11, Iss 9, p 380 (2021)
Altered tephras (K-bentonites) are of great importance for calibration of the geologic time scale, for local, regional, and global correlations, and paleoenvironmental reconstructions. Thus, definitive identification of individual tephras is critical
Externí odkaz:
https://doaj.org/article/5838959027614225a7117270146b5137
Publikováno v:
Minerals; Volume 13; Issue 6; Pages: 807
The tectonic setting of the southernmost part of the eastern margin of Laurentia during the Blountian tectophase (~472–452 Ma) of the Ordovician Taconic Orogeny remains unresolved. Tephras produced by explosive volcanism during this early phase of
Autor:
Kristine L DeLong, Kylie Palmer, Amy J Wagner, Mudith M Weerabaddana, Niall Slowey, Achim D Herrmann, Nicolas Duprey, Alfredo Martínez-García, Jonathan Jung, Irka Hajdas, Neil L Rose, Sarah L Roberts, Lucy R Roberts, Andrew B Cundy, Pawel Gaca, J Andrew Milton, Handong Yang, Simon D Turner, Chun-Yuan Huang, Chuan-Chou Shen, Jens Zinke
Publikováno v:
The Anthropocene Review
The proposed Anthropocene Global Boundary Stratotype Section and Point (GSSP) candidate site of West Flower Garden Bank (27.8762°N, 93.8147°W) is an open ocean location in the Gulf of Mexico with a submerged coral reef and few direct human impacts.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35d775d94e7e0ec1b7046beefbf8d4ac
https://hdl.handle.net/21.11116/0000-000C-DEC0-1
https://hdl.handle.net/21.11116/0000-000C-DEC0-1
Autor:
Wei Wei, Wenchao Yu, Thomas J. Algeo, Achim D. Herrmann, Lian Zhou, Jinhua Liu, Qian Wang, Yuansheng Du
Publikováno v:
Geology. 50:537-541
Salinity variation in ancient epicontinental seas has long been challenging to reconstruct. We determined salinity variation in the Late Pennsylvanian North American Midcontinent Sea based on normalized boron concentrations (B/Ga) and isotopic compos
Publikováno v:
Basin Research. 34:251-273
Autor:
Lian Zhou, Qian Wang, Achim D. Herrmann, Thomas J. Algeo, Lan Ping Feng, Jin Hua Liu, Jun Shen
Publikováno v:
Geochimica et Cosmochimica Acta. 297:1-23
The North American Midcontinent Sea (NAMS) covered a vast area during Late Pennsylvanian glacio-eustatic highstands, providing a laboratory for analysis of the internal watermass dynamics of large cratonic seas (of which few exist in the Recent). In
Publikováno v:
Journal of Experimental Marine Biology and Ecology. 511:28-39
Ocean acidification has the potential to impact the ocean's biogeochemical cycles and food web dynamics, with phytoplankton in the distinctive position to profoundly influence both, as individual phytoplankton species play unique roles in energy flow
Autor:
Thomas P Blanchard, Edward A. Laws, Alexander D Reyes-Avila, Achim D. Herrmann, Ronald D. DeLaune
Publikováno v:
Journal of Environmental Science and Health, Part A. 54:238-245
Ample historical evidence has demonstrated the neurotoxicity of organic Hg. However, several studies have suggested that Se effectively sequesters MeHg. The affinity of Hg is up to ≈106 times highe...