Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Anthony J. Crawford"'
Publikováno v:
Australian Journal of Earth Sciences. 67:75-87
This study investigates the prospectivity for porphyry Cu mineralisation of the early Paleozoic Loch Lilly-Kars Belt, which follows the southern margin of the Paleoproterozoic Broken Hill (...
Autor:
Amos Garay, David R. Cooke, Shawn B. Hood, Christopher Leslie, Joshua Phillips, AD Ahmed, Anthony J. Crawford, Tristan Wells
Publikováno v:
Geochemistry: Exploration, Environment, Analysis. 20:81-97
Based on a global compilation of whole-rock geochemical data, Sr/Y and Sr/MnO are identified as effective discriminators between ore-forming and unprospective intrusions in the porphyry Cu setting. Intrusive rocks are classified into three fertility
Publikováno v:
Ore Geology Reviews. 90:510-531
Three mafic-hosted, magnetite-related prospects called Jameson, Navigator and Latitude Hill occur in the most evolved, upper parts of the 1078 Ma layered intrusions belonging to the Giles Complex, Musgrave Province, Western Australia. The hosting lay
Publikováno v:
Ore Geology Reviews. 90:532-552
Four elongate, km-scale, mafic to ultramafic bodies (UMB) were identified within the Ordovician-Silurian Dido Batholith, north Queensland, and were assessed for Ni-Cu-PGE fertility. The UMB comprise layered cumulate sequences and represent open-syste
Autor:
Nicholas G. Direen, Roland Maas, Joanne M. Whittaker, Benjamin E. Cohen, Anthony J. Crawford, Millard F. Coffin, Sebastien Meffre, Jacqueline A. Halpin, Frederick A. Frey
Publikováno v:
Australian Journal of Earth Sciences. 64:851-869
Volcanism associated with the Kerguelen Large Igneous Province is found scattered in southwestern Australia (the ca 136 to ca 130 Ma Bunbury Basalts, and ca 124 Ma Wallaby Plateau), India (ca 118 Ma Rajmahal Traps and Cona Basalts), and Tibet (the ca
Autor:
Anthony J. Crawford, Sebastien Meffre, Khin Zaw, Jacqueline A. Halpin, Hai Thanh Tran, Chun-Kit Lai
Publikováno v:
Gondwana Research. 34:254-273
Volcanoplutonic complexes in NE Vietnam have recently been interpreted as intraplate products of the Emeishan plume. Alternatively, mafic–ultramafic rocks have been considered as dismembered Palaeotethyan ophiolites juxtaposed along a tectonic mela
Autor:
Mark G. Doyle, Anthony J. Crawford
Publikováno v:
Economic Geology. 111:395-420
The Tropicana gold deposit (7.9 Moz) is hosted by the Neoarchean, amphibolite- to granulite-grade Tropicana Gneiss. These rocks form part of the Plumridge terrane, a tectonic unit that separates the in situ eastern margin of the Yilgarn craton from P
Autor:
Kaj Hoernle, Folkmar Hauff, Anthony J. Crawford, Sebastien Meffre, Sherman H. Bloomer, Dawn J. Wright, Trevor J. Falloon
Publikováno v:
Tectonophysics. 630:21-32
The Tonga fore-arc preserves a complex history of subduction initiation, back-arc basin formation and arc volcanism which has extended from the Cretaceous to the present. In this paper, we discuss the geochemistry of a Cretaceous basalt/dolerite/gabb
Autor:
Sebastien Meffre, Chun-Kit Lai, Anthony J. Crawford, Chuan-Dong Xue, Jacqueline A. Halpin, Khin Zaw
Publikováno v:
Gondwana Research. 26:52-74
The Western Ailaoshan (WAL) Volcanic Belts mark the western boundary of the South China–Indochina Suture Zone along the Ailaoshan Fold Belt. Geochronological and geochemical evidence suggests that the WAL Volcanic Belts vary in ages and origins, an
Autor:
Chun-Kit Lai, Abhisit Salam, Anthony J. Crawford, Jacqueline A. Halpin, Chuan-Dong Xue, Sebastien Meffre, Khin Zaw
Publikováno v:
Gondwana Research. 26:75-88
The Central Ailaoshan (CAL) ophiolite represents an important tectonic component of the Jinshajiang–Ailaoshan–Song Ma suture zone separating the South China and Indochina blocks in the mainland SE Asia. The CAL ophiolite occurs as a complex tecto