Zobrazeno 1 - 10
of 660
pro vyhledávání: '"M.W. Roberts"'
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 13, Iss 1, Pp 25-29 (1994)
X-ray photoelectron and electron energy loss spectroscopic (XPS-EELS) studies reveal that the following species are present when a mixture of CO2 and water vapour is exposed to the clean Mg(100) surface at 110K: CO3(a), C(a) CH(a), OH(a). The reactiv
Externí odkaz:
https://doaj.org/article/b301a8c0d6a24fb5a327ffaae6f65512
Publikováno v:
Mineralogical Magazine. 87:40-59
Eclogite-facies mineral assemblages are commonly preserved in mafic protoliths within continental terranes. It is widely accepted that the entirety of these continental terrains must also have been subducted to eclogite-facies conditions. However, ev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6c7beafa12619b86fda9929bb62be24
https://doi.org/10.1180/mgm.2022.121
https://doi.org/10.1180/mgm.2022.121
Autor:
Carlos E. Ganade, Caue R. Cioffi, João Pacífico Machado, Tiago Miranda, Leonardo B. Lopes, Roberto F. Weinberg, Maria Alcione Celestino, Bruno Carvalho, Marcel Guillong, Nick M.W. Roberts
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Carbonate U-Pb dating of samples from rift-bounding faults of intracontinental basins in the Borborema province, northeastern Brazil, indicate recurrent tectonic activity during Pangea breakup lasting for >150 m.y. from the Late Triassic to the Paleo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d2abfa08e1e4897fd939c6fde7b4d19
https://doi.org/10.1130/g50032.1
https://doi.org/10.1130/g50032.1
Autor:
Ming Yang, Yue‐Heng Yang, Sandra L. Kamo, Rolf L. Romer, Nick M.W. Roberts, Hao Wang, Lie‐Wen Xie, Chao Huang, Jin‐Hui Yang, Fu‐Yuan Wu
Publikováno v:
Geostandards and Geoanalytical Research
Allanite is a common accessory mineral that generally incorporates considerable amounts of Th, U and light rare Earth elements in its structure, making it a useful mineral for in situ U-Th-Pb geochronology and Sm-Nd isotope measurements. Here, we pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44090db0a94f2d9f5e57087b7bd310d1
https://doi.org/10.1111/ggr.12417
https://doi.org/10.1111/ggr.12417
Autor:
Thomas N. Lamont, Nick M.W. Roberts, Michael P. Searle, Nicholas J. Gardiner, Phillip Gopon, Yu-Te Hsieh, Philip Holdship, Richard W. White
Publikováno v:
GSA Bulletin.
Granitoids of varying mineralogy are exposed on the Cycladic islands of Greece; they include both hornblende-bearing I-type granites and garnet ± muscovite−bearing S-type granites, suggesting heterogeneous magma sources. In this contribution, we p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33420185ae253c7093e7e724f7860500
https://doi.org/10.1130/b36489.1
https://doi.org/10.1130/b36489.1
Autor:
Thomas N. Lamont, Andrew J. Smye, Nick M.W. Roberts, Michael P. Searle, David J. Waters, Richard W. White
Publikováno v:
GSA Bulletin.
Metamorphic core complexes are classically interpreted to have formed during crustal extension, although many also occur in compressional environments. New U−(Th)−Pb allanite and xenotime geochronologic data from the structurally highest Zas Unit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::232aa1cfc32d9effbee23b2b2fc17fbc
https://doi.org/10.1130/b36332.1
https://doi.org/10.1130/b36332.1
Autor:
Nick M.W. Roberts, Johanna Salminen, Åke Johansson, Ross N. Mitchell, Richard M. Palin, Kent C. Condie, Christopher J. Spencer
The mid-Proterozoic (ca. 1850-850 Ma) is a peculiar period of Earth history in many respects: ophiolites and passive margins of this age are rare, whereas anorthosite and A-type granite suites are abundant; metamorphic rocks typically record high the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a8b239fb87d43d3c43d80960445852f
https://doi.org/10.1016/j.epsl.2022.117749
https://doi.org/10.1016/j.epsl.2022.117749
Autor:
Steinar Halvdan Hansen Møkkelgjerd, Nolwenn Coint, Graham Hagen-Peter, Christopher L. Kirkland, Trond Slagstad, Torkil S. Røhr, Nick M.W. Roberts, Bjørn Eske Sørensen, Anette Granseth
Publikováno v:
Gondwana Research
Magmatism between 1.3 and 0.9 Ga at the southwestern margin of Fennoscandia, comprising mainly granitic batholiths and subordinate bimodal volcanic rocks, provides a nearly continuous magmatic record of the Fennoscandian tectonic evolution. Here, we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35176a3a7aa4505020cde22619dc0924
https://doi.org/10.1016/j.gr.2020.10.019
https://doi.org/10.1016/j.gr.2020.10.019
Autor:
Nick M.W. Roberts, Richard M. Palin
Publikováno v:
Geoscience Frontiers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::991cdb5b1d0c5c2f8bef987bb8953076
https://ora.ox.ac.uk/objects/uuid:d1a4b83a-e5f4-404e-867e-66418c5fd433
https://ora.ox.ac.uk/objects/uuid:d1a4b83a-e5f4-404e-867e-66418c5fd433
Autor:
E. Fiordalisi, Ulrike Freitag, Roger Swart, N. Rochelle-Bates, Nick M.W. Roberts, Ian R. Sharp, B. E. van Dongen, C.H. Ferreira, R. Dixon, K. Verwer, Alison M. Halton, Stefan Schröder
Publikováno v:
Rochelle-Bates, N, Roberts, N M W, Sharp, I, Verwer, K, Halton, A, Fiordalisi, E, van Dongen, B E, Swart, R, Ferreira, C H, Dixon, R & Schröder, S 2020, ' Geochronology of volcanically associated hydrocarbon charge in the Pre-Salt of the Namibe Basin, Angola ', Geology . https://doi.org/10.1130/G48019.1
In volcanic rifted margins, the timing of hydrocarbon charge is difficult to predict, but is important in understanding fluid genesis. We investigated whether igneous activity was linked to hydrocarbon charge in the prolific South Atlantic pre-salt p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83a9b56f8a0066916dadabd27af4b7d6
https://doi.org/10.1130/g48019.1
https://doi.org/10.1130/g48019.1