Search results
Jump to navigation
Jump to search
- .... Genes & development, 22(2), 121-124.</ref> There is a gap in the fossil record, and no transitional fossils exist from this quadrupedal ancestor to the ap ...22 KB (3,222 words) - 02:11, 22 November 2024
- ...k was the Pee Dee Belemnite (PDB) and was based on a [[Cretaceous]] marine fossil, ''[[Belemnitella americana]]'', which was from the [[Peedee Formation]] in ...sub>4</sub> grasses to be detected through time in the ''δ''<sup>13</sup>C record.<ref name=Retallack2001>{{cite journal | author = Retallack, G.J. | year = ...15 KB (2,107 words) - 22:38, 3 February 2025
- ...ed and deposited in [[foreland basin]]s and at offshore fans. The detrital record can be collected from all these places and can be used in provenance studie ...-authors=etal |date=2004 |title=Detrital geochronology and geochemistry of Cretaceous—Early Miocene strata of Nepal: Implications for timing and diachroneity of ...54 KB (7,416 words) - 03:38, 17 February 2025
- ...rough its abundance and sulfur isotope composition, it provides a valuable record of the global [[sulfur cycle]] across time and space. ...minerals within [[evaporite]]s, which are somewhat sparse in the geologic record, often poorly preserved, and necessarily associated with complicated and ex ...48 KB (6,590 words) - 18:06, 23 September 2024
- |fossil_range = {{long fossil range|Mesoproterozoic|present}} ...verworts]], [[hornwort]]s, [[moss]]es, and [[vascular plant]]s, as well as fossil plants similar to these surviving groups (e.g., Metaphyta <small>Whittaker, ...95 KB (12,540 words) - 21:06, 26 February 2025
- ...r = 1981 | title = The effect of maturation on the isotopic composition of fossil fuels | journal = Organic Geochemistry | volume = 3 | issue = 1–2| pages = ...ment has been clumped isotopes of methane.(See section of "natural gas" in Fossil fuels) Another strength of this kind of instruments is the ability to do si ...236 KB (33,740 words) - 16:38, 15 November 2024
- ...extinctions and 20 to 30 lower severity events. This matches the geologic record of significant extinctions during the [[Phanerozoic Eon]]. Such events can ...global warming]] period of finite duration (based on the assumption that [[fossil fuel]] use will cease by the year 2200) will probably only impact the glaci ...99 KB (13,859 words) - 20:50, 16 February 2025
- ...archive-url=https://web.archive.org/web/20180727015521/https://cds.cern.ch/record/318436/files/9701131.pdf |access-date=10 October 2021|archive-date=27 July ...t over the next 5000 years|url=https://www.webofscience.com/wos/woscc/full-record/WOS:A1995QR15300011|doi=10.1029/95GL00362|journal=Geophysical Research Lett ...174 KB (23,751 words) - 02:21, 1 March 2025