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Paleozoic echinoderm hangovers: Waking up in the Triassic: REPLY
Fri Jun 9, 2017 00:49
Paleozoic echinoderm hangovers: Waking up in the Triassic: REPLY
Fri Jun 9, 2017 00:49
Paleozoic echinoderm hangovers: Waking up in the Triassic: COMMENT
Fri Jun 9, 2017 00:49
Dating the Paleoproterozoic snowball Earth glaciations using contemporaneous subglacial hydrothermal systems
The presence of Paleoproterozoic glacial diamictites deposited at low latitudes on different continents indicates that three or four worldwide glaciations occurred between 2.45 and 2.22 Ga. During that time period, the first atmospheric oxygen rise, known as the Great Oxidation Event (GOE), occurred, implying a potential connection between these events....
Fri Jun 9, 2017 00:49
Introducing the Xenoconformity
Fri Jun 9, 2017 00:49
Increased mud deposition reduces stromatolite complexity
Microbial mat growth can produce diagnostic delicate structures in low-energy environments, but mat morphology, and thus preservation of delicate structures as morphological biosignatures, is affected by mud accumulation. In Lake Joyce, Antarctica, varying rates of siliciclastic mud deposition affected the morphology of partially calcified microbial...
Fri Jun 9, 2017 00:49