The earliest Cambrian record of animals and ocean geochemical change
The Cambrian diversification of animals was long thought to have begun with an explosive
phase at the start of the Tommotian Age. Recent stratigraphic discoveries, however, suggest …
phase at the start of the Tommotian Age. Recent stratigraphic discoveries, however, suggest …
Enrichment of rare earth elements in the early Cambrian Zhijin phosphorite deposit, SW China: Evidence from francolite micro-petrography and geochemistry
Z Zhang, Y Jiang, H Niu, J Xing, S Yan, A Li… - Ore Geology …, 2021 - Elsevier
The Zhijin phosphorite deposit is a giant early Cambrian rare earth element (REE) deposit,
with particular enrichment in heavy REEs, and is of high economic significance. The REEs of …
with particular enrichment in heavy REEs, and is of high economic significance. The REEs of …
The cambrian period
SC Peng, LE Babcock, P Ahlberg - Geologic time scale 2020, 2020 - Elsevier
Appearance of metazoans with mineralized skeletons,“explosion” in biotic diversity and
disparity, infaunalization of the substrate, occurrence of metazoan Konservat Fossil …
disparity, infaunalization of the substrate, occurrence of metazoan Konservat Fossil …
Animal evolution, bioturbation, and the sulfate concentration of the oceans
DE Canfield, J Farquhar - Proceedings of the National …, 2009 - National Acad Sciences
As recognized already by Charles Darwin, animals are geobiological agents. Darwin
observed that worms aerate and mix soils on a massive scale, aiding in the decomposition …
observed that worms aerate and mix soils on a massive scale, aiding in the decomposition …
The evolution of the marine carbonate factory
Calcium carbonate formation is the primary pathway by which carbon is returned from the
ocean–atmosphere system to the solid Earth,. The removal of dissolved inorganic carbon …
ocean–atmosphere system to the solid Earth,. The removal of dissolved inorganic carbon …
The Ediacaran Period
The Ediacaran System and Period was ratified in 2004, the first period-level addition to the
geologic time scale in more than a century. The GSSP at the base of the Ediacaran marks …
geologic time scale in more than a century. The GSSP at the base of the Ediacaran marks …
The Ediacaran radiogenic Sr isotope excursion in the Doushantuo Formation in the three Gorges area, South China
The Ediacaran period was one of the most important times for the evolution of life. However,
the scarcity of well-preserved outcrops of Ediacaran rocks still leaves ambiguity in decoding …
the scarcity of well-preserved outcrops of Ediacaran rocks still leaves ambiguity in decoding …
Uncovering the spatial heterogeneity of Ediacaran carbon cycling
Records of the Ediacaran carbon cycle (635–541 million years ago) include the Shuram
excursion (SE), the largest negative carbonate carbon isotope excursion in Earth history …
excursion (SE), the largest negative carbonate carbon isotope excursion in Earth history …
Carbon isotope chemostratigraphy of a Precambrian/Cambrian boundary section in the Three Gorge area, South China: prominent global-scale isotope excursions …
Carbon isotope chemostratigraphy has been used for worldwide correlation of Precambrian/
Cambrian (Pc/C) boundary sections, and has elucidated significant change of the carbon …
Cambrian (Pc/C) boundary sections, and has elucidated significant change of the carbon …
Carbon and oxygen isotope chemostratigraphies of the Yangtze platform, South China: decoding temperature and environmental changes through the Ediacaran
Multicellular animals first appeared on the earth during the Ediacaran period. However, the
relationship between the abrupt biological evolution and environmental changes is still …
relationship between the abrupt biological evolution and environmental changes is still …