Zobrazeno 1 - 10
of 288
pro vyhledávání: '"Kent C. Condie"'
Autor:
Stephen J. Puetz, Kent C. Condie, Kurt Sundell, Nick M.W. Roberts, Christopher J. Spencer, Slah Boulila, Qiuming Cheng
Publikováno v:
Geoscience Frontiers, Vol 15, Iss 4, Pp 101821- (2024)
Numerous scientific fields are facing a replication crisis, where the results of a study often cannot be replicated when a new study uses independent data. This issue has been particularly emphasized in psychology, health, and medicine, as incorrect
Externí odkaz:
https://doaj.org/article/25f52fd3ddb1427a9c30a2cb18ee58dc
Publikováno v:
Scientific Data, Vol 11, Iss 1, Pp 1-16 (2024)
Abstract High-quality global isotopic databases provide Earth scientists with robust means for developing and testing a variety of geological hypotheses. Database design establishes the range of questions that can be addressed, and validation techniq
Externí odkaz:
https://doaj.org/article/1e344719bbb443dc811ed62b9117636c
Autor:
Kent C. Condie, Robert J. Stern
Publikováno v:
Geoscience Frontiers, Vol 14, Iss 6, Pp 101680- (2023)
Ophiolites are fragments of oceanic lithosphere that are produced at spreading centers at ocean ridges, back arc basins, or forearcs during subduction initiation, and are key indicators of plate tectonics. Although it is widely agreed that ophiolites
Externí odkaz:
https://doaj.org/article/9b6e621f8c884a4b9cf851f25afbed54
Autor:
Kent C. Condie, Stephen J. Puetz
Publikováno v:
Geoscience Frontiers, Vol 10, Iss 4, Pp 1327-1336 (2019)
Igneous and detrital zircons have six major U/Pb isotopic age peaks in common (2700 Ma, 1875 Ma, 1045 Ma, 625 Ma, 265 Ma and 90 Ma). For igneous rocks, each age peak is comprised of subpeaks with distinct geographic distributions and a subpeak age ra
Externí odkaz:
https://doaj.org/article/69f67d7b08574796b6b3606677460861
Autor:
Stephen J. Puetz, Kent C. Condie
Publikováno v:
Geoscience Frontiers, Vol 10, Iss 4, Pp 1305-1326 (2019)
In this study, seven isotopic databases are presented and analyzed to identify mantle and crustal episodes on a global scale by focusing on periodicity ranging from 70 to 200 million years (Myr). The databases are the largest, or among the largest, c
Externí odkaz:
https://doaj.org/article/75ce514bd0084c5fa59208c879a0ec63
Autor:
Kent C. Condie
Publikováno v:
Geoscience Frontiers, Vol 9, Iss 1, Pp 51-60 (2018)
Many geological and geochemical changes are recorded on Earth between 3 and 2 Ga. Among the more important of these are the following: (1) increasing proportion of basalts with “arc-like” mantle sources; (2) an increasing abundance of basalts der
Externí odkaz:
https://doaj.org/article/3db943fc9a2d4aabad45a838a306ae13
Publikováno v:
Geoscience Frontiers, Vol 7, Iss 4, Pp 543-553 (2016)
Greenstone basalts and komatiites provide a means to track both mantle composition and magma generation temperature with time. Four types of mantle are characterized from incompatible element distributions in basalts and komatiites: depleted, hydrate
Externí odkaz:
https://doaj.org/article/a766cd2124c44bb4885a2b9283cb8603
Autor:
Kent C. Condie, Richard C. Aster
Publikováno v:
Geoscience Frontiers, Vol 4, Iss 6, Pp 667-680 (2013)
The combined use of Hf, Nd and Sr isotopes is more useful in understanding the supercontinent cycle than the use of only Hf isotopic data from detrital zircons. Sr and Nd seawater isotopes, although not as precise as ɛNd and ɛHf distributions, also
Externí odkaz:
https://doaj.org/article/8c911ddc43fa49eca24eb72796777a14
Autor:
Kent C. Condie
Publikováno v:
Geosciences, Vol 3, Iss 2, Pp 240-261 (2013)
Zircon age peaks at 2100–1650 and 1200–1000 Ma correlate with craton collisions in the growth of supercontinents Nuna and Rodinia, respectively, with a time interval between collisions mostly
Externí odkaz:
https://doaj.org/article/c027717453874e5e916307bca38f8530
Autor:
Kent C. Condie
Earth as an Evolving Planetary System is based on Kent Condie's classic text, Plate Tectonics and Crustal Evolution, which has been revamped and renamed in order to reflect a new emphasis on the evolving interactions of the Earth's systems. This revi