Xie, Shucheng
Published in
Science China Earth Sciences
Global warming, the most severe faunal mass extinction and the shift of biogeochemical cycles were observed in the ocean across the Permian-Triassic boundary about 252 million years ago, providing an analog to understanding the modern oceans. Along with the progressive global warming, the biogeochemical cycle was documented to show a shift from the...
Zhang, Chuanlun Lin, Jian Li, Sanzhong Dong, Hailiang Wang, Fengping Xie, Shucheng
Published in
Science China Earth Sciences
Geomicrobiology is a sub-discipline of geobiology and emphasizes the interaction between microorganisms and their environment on Earth. There is a need to explicitly emphasize the biogeochemical processes performed by microorganisms associated with Earth’s tectonic activities, especially under the framework of the modern theory of plate tectonics. ...
Killam, Daniel
Bivalve shells contain growth lines which are formed as a result of periodic environmental or physiological stress, analogous to tree rings. The study of these regular growth increments in the hard parts of bivalves and other calcifying organisms is called sclerochronology. In this thesis, I have examined the ways that sclerochronology can be usefu...
Xie, ShuCheng Liu, Deng Qiu, Xuan Huang, XianYu Algeo, Thomas J.
Published in
Science China Earth Sciences
Microbes not only show sensitive responses to environmental changes but also play important roles in geochemical and geophysical systems. It is well known that microbes have caused major changes in surface environments and biogeochemical cycles through Earth history. Microbial processes can also induce the synthesis of certain minerals under Earth-...
Liu, Shilei Wang, Jian Yin, Fuguang Xie, Tao Hu, Shixue Guan, Xiaofeng Zhang, Qiyue Zhou, Changyong Cheng, Wanhua Xu, Jinsha
...
Published in
Carbonates and Evaporites
An Early Triassic stromatolitic deposit is documented in the Dienerian succession of the Lower Triassic Feixianguan Formation in the Xingyi area, Guizhou, southwest China. Five types of constructional microbial forms at various scales were observed. (1) Typical stratified columnar structures, up to 25 cm in height, with crinkled laminae. Dark-colou...
Hardisty, Dalton Shane
The presence of marine oxygen is an essential precursor for faunal habitability, driving distribution in coastal systems today and linked to evolutionary patterns throughout the geologic past. In oxygen-deficient marine systems, the reducing capacity can be defined by the zonation of redox-sensitive elements (e.g. O, I, N, Mn, Fe, S, C), with their...
Warner, Anne Brooks
ABSTRACTAnne Brooks WarnerRECENT SEDIMENTS OF MIDWAY ATOLLMidway Atoll lies at the far northwestern end of the volcanic Hawaiian island chain and is one of few relatively pristine coral reef ecosystems remaining worldwide. Midway’s unusual morphology, high-latitude location (29°N), and history of anthropogenic changes make it a unique setting, whic...
Lee, Carina
Lipid biomarkers and stable carbon isotopes can track the evolution of microbial communities and carbon cycling, respectively, in preserved organic matter. Traditionally, carbon isotopes are measured in bulk materials, though technological advances allow us to measure the carbon isotope composition of individual hydrocarbon molecules, providing dir...
Anjileli, Hassan
Global warming, caused by the increase of CO2 emissions, has increased frequency and intensity of climate extremes. Extreme events have large impacts on the terrestrial ecosystem carbon. Therefore, it is fundamental to investigate the subterrestrial processes of producing carbon dioxide. Carbon dioxide flux is affiliated with heterotroph and autotr...
Warner, Anne Brooks
ABSTRACTAnne Brooks WarnerRECENT SEDIMENTS OF MIDWAY ATOLLMidway Atoll lies at the far northwestern end of the volcanic Hawaiian island chain and is one of few relatively pristine coral reef ecosystems remaining worldwide. Midway’s unusual morphology, high-latitude location (29°N), and history of anthropogenic changes make it a unique setting, whic...
