Zobrazeno 1 - 10
of 20
pro vyhledávání: '"G. N. Hanson"'
Autor:
Eugene I. Smith, Klaus J. Schulz, G. N. Hanson, R. L. Bauer, R.W. Ojakangas, V.W. Chandler, D. L. Southwick, G.B. Morey, W. R. Van Schmus, J. L. Anderson, J. Kalliokoski, P. K. Sims, Zell E. Peterman, P. W. Weiblen, M. G. Mudrey, S. B. Shirey
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bac9c19785a6a7e8e32361f21f8f2d9
https://doi.org/10.1130/dnag-gna-c2.11
https://doi.org/10.1130/dnag-gna-c2.11
Archaean Geochemistry 1972 - 1984 The realisation that the continental crust contains well-preserved relics which date as far back as 4/5 of the Earth's age has given a great impetus to the study of early Precambrian terrains. As late as the mid-sixt
Publikováno v:
Economic Geology. 89:1552-1566
Both vein-type gold-bearing quartz deposits and stratiform-type gold sulfide deposits occur in the Archean Kolar schist belt. We present here the results of rare earth element (REE) studies on the banded iron-formation-hosted Mallappakonda gold sulfi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::433e0a01d9ecb3063ae2d8cd8d68ed8c
https://doi.org/10.2113/gsecongeo.89.7.1552
https://doi.org/10.2113/gsecongeo.89.7.1552
Autor:
G. N. Hanson
To develop field, petrographic and geochemical criteria to allow high precision U-Pb dating of sedimentary minerals within rapidly deposited sequences of carbonate and clastic rocks.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2b75f0aee93151c8270d7b08b54e9f4
https://doi.org/10.2172/895978
https://doi.org/10.2172/895978
Autor:
G. N. Hanson, C. H. Langmuir
Publikováno v:
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences. 297:383-407
Understanding the evolution of the mantle requires a knowledge of the relative variations of the major elements, trace elements and isotopes in the mantle. Most of the evidence for mantle heterogeneity is based on variations in the trace element and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0536cd93c82bf7c611ed37888f1ac445
https://doi.org/10.1098/rsta.1980.0223
https://doi.org/10.1098/rsta.1980.0223
Autor:
G. N. Hanson
Publikováno v:
Journal of the Geological Society. 134:235-253
The suboceanic mantle has on the basis of incompatible element and isotope ratios two chemically distinct units; the mantle source for ocean island basalts and the mantle source for ocean ridge basalts. Ocean island alkali basalts have an enriched li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74a5ee9c222bc8a3409788f080fa811a
https://doi.org/10.1144/gsjgs.134.2.0235
https://doi.org/10.1144/gsjgs.134.2.0235
Publikováno v:
Journal of Petrology. 26:92-123
The Kolar Schist Belt of the Dharwar Craton of South India is an Archean greenstone belt dominated by metavolcanic rocks. The mafic metavolcanic rocks occur as komatiitic and tholeiitic amphibolites. The komatiitic amphibolites occur along the margin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed5774d1f1139623e6caa411cc1be64a
https://doi.org/10.1093/petrology/26.1.92
https://doi.org/10.1093/petrology/26.1.92
Publikováno v:
Canadian Journal of Earth Sciences. 11:30-42
The Nonacho Group is a folded sequence of sedimentary rocks resting on a crystalline basement of probable Archean age. Both sedimentary and basement rocks are intruded by the Sparrow dikes. Fifty-four samples from 10 dikes have a stable magnetization
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42dc7a2f796c132c66f9bb161cc306b1
https://doi.org/10.1139/e74-003
https://doi.org/10.1139/e74-003
Autor:
G. N. Hanson
Publikováno v:
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences. 301:423-442
The most important process affecting both major and trace-element concentrations in the mantle and crust is melting producing silicate liquids which then migrate. Another process whose effects are becoming more apparent is the transport of elements b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c3e473a912a3d847ba20d34e323dd8a
https://doi.org/10.1098/rsta.1981.0121
https://doi.org/10.1098/rsta.1981.0121
Publikováno v:
Science. 243:1337-1340
The Archean Kolar Schist Belt, south India, is a suture zone where two gneiss terranes and at least two amphibolite terranes with distinct histories were accrted. Amphibolites from the eastern and western sides of the schist belt have distinct incomp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff756288fdad5d4253027bd7c4689be1
https://doi.org/10.1126/science.243.4896.1337
https://doi.org/10.1126/science.243.4896.1337