Phanerozoic


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Related to Phanerozoic: Phanerozoic eon, Paleozoic, Proterozoic

Phanerozoic

[¦fan·ə·rō¦zō·ik]
(geology)
The part of geologic time for which there is abundant evidence of life, especially higher forms, in the corresponding rock, essentially post-Precambrian.
References in periodicals archive ?
For the Phanerozoic, the estimates of arreos pheric pC[O.sub.2] levels are not only internal ly inconsistent, but they also do not show any correlation with the paleoclimate record (Fig.
This contrasts with Phanerozoic orogens such as the Appalachians, which still have strong modern-day topographic expression more than 300 Ma after cessation of orogeny.
The sedimentary composition and particular sequence stratigraphic position of the microbialitic bioherms from Series 3 and Furongian series of Shanxi Province provide significant information for the future understanding of the formation mechanism of bioherms during "the first episode of the Cyanobacteria Calcification Events in the Phanerozoic" or "a resuscitate period of microbial carbonate from Cambrian to the Early Ordovician".
252-254, The Phanerozoic, South Australia, Australia, 1995.
It is known that one of the largest mass extinction events of the Phanerozoic marked this boundary, and the record of this geologically historic event has been revealed at several stratigraphic sections over the world, most commonly from the subsurface and much less so from outcrop [1-3] due to obliteration by surface geologic processes (weathering and erosion).
Berner, Atmospheric Oxygen Over Phanerozoic Time, Proceedings of the National Academy of Sciences, 96, 10955 (1999).
The Aquifer Urucuia is the set of aquifers that take place in the area of Urucuia Group, covering Urucuia sub-basin and is defined as the northern part of the subdivision of Sanfranciscana basin, which corresponds to most of the Phanerozoic cover Craton [6].