Zobrazeno 1 - 10
of 22
pro vyhledávání: '"R. I. Hill"'
Autor:
R. I. Hill, Ian H. Campbell
Publikováno v:
Australian Journal of Earth Sciences. 40:559-574
Ion probe U‐Th‐Pb dating of zircons from the Late Archaean granites of the Norseman region of the southeastern Yilgarn shows the existence of two distinct magmatic episodes. Large regional tonalite and granodiorite plutons were emplaced between 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfd09f5cf3250e96e883906e51ce9084
https://doi.org/10.1080/08120099308728104
https://doi.org/10.1080/08120099308728104
Autor:
R. I. Hill
Publikováno v:
Lithos. 30:193-206
It is now recognised that plumes originate from a thermal boundary layer deep in the mantle. A new plume consists of a large head with a diameter of approximately 800 to 1200 km and it is followed by a smaller tail which has a diameter of 100 to 200
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be6d755df2a1c5bc2747cbce8fb355c3
https://doi.org/10.1016/0024-4937(93)90035-b
https://doi.org/10.1016/0024-4937(93)90035-b
Publikováno v:
Chemical Geology. 104:293-300
The β-decay constant of 138 La has been geochronologically determined using Archean granites from the Yilgarn Block, Western Australia. RbSr and SmNd mineral isochron ages were obtained for the two granite samples, which are nearly identical w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b6b9ea06573cbbb4378f82a9e5fd673
https://doi.org/10.1016/0009-2541(93)90158-f
https://doi.org/10.1016/0009-2541(93)90158-f
Publikováno v:
Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 83:211-226
Late Archaean granitic rocks from the southern Yilgarn Craton of Western Australia have a close temporal relationship to the basaltic and komatiitic volcanism which occurs within spatially associated greenstone belts. Greenstone volcanism apparently
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::989bf2cfd589bc575ac00f05000474ec
https://doi.org/10.1017/s0263593300007902
https://doi.org/10.1017/s0263593300007902
Autor:
R. I. Hill
Publikováno v:
Earth and Planetary Science Letters. 104:398-416
Laboratory studies of fluid dynamic analogs of mantle plumes have led to important advances in our understanding of the life cycle of hotspots. Melting within the large volume heads of starting plumes gives rise to flood basalt provinces, while uplif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d4391f7735a4f8f000e71533b623592
https://doi.org/10.1016/0012-821x(91)90218-7
https://doi.org/10.1016/0012-821x(91)90218-7
Publikováno v:
Exploration Geophysics. 22:185-188
The early phase of a new mantle plume may result in areas of basaltic volcanism and crustal reworking 1?2 ´ 103 km across. Uplift of pre-existing continental crust by up to 800 metres may be sufficient to initiate large-scale tectonic processes, par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e40adaf46cfe421b43cd3f5dbd11cc6c
https://doi.org/10.1071/eg991185
https://doi.org/10.1071/eg991185
Publikováno v:
Science (New York, N.Y.). 258(5089)
Uranium-lead ages from an ion probe were taken for zircons from the ore-bearing Noril'sk I intrusion that is comagmatic with, and intrusive to, the Siberian Traps. These values match, within an experimental error of +/-4 million years, the dates for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09d2b198b5a898f251554e507a8c7f60
https://pubmed.ncbi.nlm.nih.gov/17831657
https://pubmed.ncbi.nlm.nih.gov/17831657
Publikováno v:
ResearcherID
Mantle plumes and plate tectonics, the result of two distinct modes of convection within the Earth, operate largely independently. Although plumes are secondary in terms of heat transport, they have probably played an important role in continental ge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e69099befab64e681f579e192d183bf
https://pubmed.ncbi.nlm.nih.gov/17744717
https://pubmed.ncbi.nlm.nih.gov/17744717
Autor:
R. I. Hill
Publikováno v:
Eos, Transactions American Geophysical Union. 73:427-427
What do we know about granites? That was, in essence, the unifying thread of the 2nd Hutton Symposium on Granites and Related Rocks (or “Hutton Down Under”), held in Canberra, Australia, September 23–28, 1991. Questions considered, and often ho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5985d2fd9b074158566bc0b119be8198
https://doi.org/10.1029/91eo00318
https://doi.org/10.1029/91eo00318