Zobrazeno 1 - 10
of 12
pro vyhledávání: '"R. J. Wormald"'
Publikováno v:
Precambrian Research. 226:157-184
Gold deposits in the Barberton Greenstone Belt (BGB) have formed along a common network of brittle–ductile shear zones that developed during extension and emplacement of felsic porphyry dykes at ∼3015 Ma. At a deposit scale, mineralised shears oc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da59235caad9793ef4266b1fcfeafd29
https://doi.org/10.1016/j.precamres.2012.12.007
https://doi.org/10.1016/j.precamres.2012.12.007
Autor:
Robert A. Henderson, David L. Huston, William J. Collins, Christopher L. Fergusson, R Chopping, L. J Hutton, Richard Blewett, J. Holzschuh, Ross D. Costelloe, I. W. Withnall, Paul Henson, David C. Champion, N. Kositcin, R. J. Wormald, Erdinc Saygin, A. J Meixner, R. J. Korsch
Publikováno v:
Tectonophysics. :76-99
A deep crustal seismic reflection and magnetotelluric survey, conducted in 2007, established the architecture and geodynamic framework of north Queensland, Australia. Results based on the interpretation of the deep seismic data include the discovery
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9788998ed08a0add35645594e6086fb
https://doi.org/10.1016/j.tecto.2012.02.022
https://doi.org/10.1016/j.tecto.2012.02.022
Publikováno v:
Australian Journal of Earth Sciences. 51:369-384
Three suites of alkaline granite can be recognised in the Narraburra Complex at the triple junction of the Tumut, Giralambone-Goonumbla and Wagga Zones, central southern New South Wales. On the basis of K2O/Na2O ratios, biotite and hornblende-biotite
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6ad09be924db4efd355b0727368f784
https://doi.org/10.1111/j.1400-0952.2004.01063.x
https://doi.org/10.1111/j.1400-0952.2004.01063.x
Publikováno v:
South African Journal of Geology. 105:67-74
Although the African surface has been reported to be capped by silcrete in the Southern Cape, as opposed to laterite in the eastern coastal hinterland and on the highveld, ferricrete and associated gravels have recently been recorded there. Analysis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c306cc8a454883e3e713818cfd839eb2
https://doi.org/10.2113/1050067
https://doi.org/10.2113/1050067
The southern part of the New England Orogen exhibits a series of remarkable orogenic bends (oroclines), which include the prominent Z-shaped Texas and Coffs Harbour oroclines. The oroclines are defined by the curvature of Devonian–Carboniferous for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::774e31818ac7549d7269942d17351378
Publikováno v:
Geological Society of America Bulletin. :B31178.1
The New England orogen of eastern Australia is characterized by tight orogenic curvatures (oroclines). Oroclinal bending commenced in the Early Permian during a period of extension that involved crustal melting, widespread emplacement of S-type grani
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80c11d90798d974cf5059bd49f0ae546
https://doi.org/10.1130/b31178.1
https://doi.org/10.1130/b31178.1
Autor:
Chris J. Hawkesworth, Gavin L. Foster, B. A. Paterson, R. J. Wormald, Anthony I.S. Kemp, Janet M. Hergt, Jon Woodhead
Publikováno v:
Geochimica et Cosmochimica Acta. 70:A313
during silicic magma genesis: the zircon testimony A.I.S. KEMP , C.J. HAWKESWORTH, B.A. PATERSON, G.L. FOSTER, J.D. WOODHEAD, J.M. HERGT AND R.J. WORMALD 1 School of Earth Sciences, James Cook University, Townsville QLD, 4811 Australia; tony.kemp@jcu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52fdcbd60ddfc751df66a5f8e764ce19
https://doi.org/10.1016/j.gca.2006.06.633
https://doi.org/10.1016/j.gca.2006.06.633
Publikováno v:
Geology. 33:797
Peralkaline granites exhibit the hallmark features of A-type igneous rocks, but strongly differentiated chemistry and intense hydrothermal alteration camouflage their ultimate origins. We present the first in situ Hf isotope data from zircons of pera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5bb18749fe497672120d591b83f2ac9
https://doi.org/10.1130/g21706.1
https://doi.org/10.1130/g21706.1
Publikováno v:
Geology. 19:1151
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71e069bd5e42078afa7315184f61fde5
https://doi.org/10.1130/0091-7613(1991)019<1151:caroat>2.3.co
https://doi.org/10.1130/0091-7613(1991)019<1151:caroat>2.3.co
Publikováno v:
Geology. 19:163
A residual-source model for the origin of A-type granites is assessed by examining the likely mineral content and geochemistry of the residue remaining from generation of an I-type granite. Although this model may explain some characteristics of A-ty
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a135b518ec9db59ff38a67bf10862c5
https://doi.org/10.1130/0091-7613(1991)019<0163:atgrao>2.3.co
https://doi.org/10.1130/0091-7613(1991)019<0163:atgrao>2.3.co