Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Axel Höhndorf"'
Publikováno v:
Precambrian Research. 113:293-305
U–Pb dating of zircon and rutile from bronzitites of the P1 pyroxenite layer of the Great Dyke precisely constrains the crystallization age of this part of the intrusion to 2575.4±0.7 Ma. Whole rock Rb–Sr and Sm–Nd data of various rock types s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9116322ad07cb2e1ed730c3790b3b9ab
https://doi.org/10.1016/s0301-9268(01)00215-7
https://doi.org/10.1016/s0301-9268(01)00215-7
Autor:
Thomas G. Blenkinsop, Axel Höhndorf, Thomas Oberthür, Ulrich F. Hein, M. Hoppner, Thorolf W. Weiser
Publikováno v:
Mineralium Deposita. 35:138-156
In the Mazowe area some 40 km NW of Harare in Zimbabwe, gold mineralization is hosted in a variety of lithologies of the Archean Harare-Bindura-Shamva greenstone belt, in structures related to the late Archean regional D2/3 event. Conspicuous mineral
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a497ece582f6bdc8454a7d37c93521a
https://doi.org/10.1007/s001260050012
https://doi.org/10.1007/s001260050012
Publikováno v:
Mineralogy and Petrology. 65:207-235
Late-Variscan granitoid plutons in western Bohemia (Bor, Waidhaus-Rozvadov) have distinct petrographic, geochemical and isotopic features that suggest different magmatic evolutions. The Bor pluton comprises a suite of metaluminous tonalites and quart
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1be5b71ba0733e747704a9369c89257e
https://doi.org/10.1007/bf01161961
https://doi.org/10.1007/bf01161961
Publikováno v:
Journal of Southeast Asian Earth Sciences. 10:51-63
The tin-tungsten mineralization in the Pilok mining area is centered on apical parts of probably Late Cretaceous alkali feldspar aplite stocks (aplogranite) which intrude earlier K-feldspar megacrystic biotite granite. The aplogranites are of transit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5370bf3bf99a87beae0cffe23cbad03b
https://doi.org/10.1016/0743-9547(94)90008-6
https://doi.org/10.1016/0743-9547(94)90008-6
Publikováno v:
Journal of Petrology
rocks range from 316 to 298 Ma for muscovites and from 306 to Orthogneisses and acid metavolcanic rocks from the Fichtelgebirge, 280 Ma for biotites, demonstrating thermal influences from Late NE Bavaria, Germany, are predominantly chemically evolved
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62f641caf54b5fcd32c6470793a740cd
http://gfzpublic.gfz-potsdam.de/pubman/item/escidoc:226498
http://gfzpublic.gfz-potsdam.de/pubman/item/escidoc:226498
Publikováno v:
Journal of Geology
Neodymium isotopic data are reported for pure chemical sediments from the Siderian Kuruman and Penge Iron-Formations (IFs) in the Transvaal Supergroup, South Africa. From a large sample set for which petrographical and chemical data was available, we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5fa68a89ed450bdc90d739a874aded7d
https://gfzpublic.gfz-potsdam.de/pubman/item/item_226512
https://gfzpublic.gfz-potsdam.de/pubman/item/item_226512
Publikováno v:
Chemical Geology
SmNd isotopic results are presented for late-and post-tectonic granitoids, comprising peraluminous granites and subordinate metaluminous dioritic rocks (redwitzites) from the Fichtelgebirge (FG) and Northern Oberpfalz (NOP), NE Bavaria. The data,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e3e5d3af1aa7e8d43bddae824c16446
https://gfzpublic.gfz-potsdam.de/pubman/item/item_227349
https://gfzpublic.gfz-potsdam.de/pubman/item/item_227349
Autor:
Ulrich F. Hein, Akimasa Masuda, Jörn Brinckmann, Bernd Lehmann, Axel Höhndorf, Shun'ichi Nakai, Peter Dulski
Publikováno v:
Geochimica et Cosmochimica Acta
The 587 Ma-old hydrothermal bastnaesite mineralization of Gakara in the western branch of the East African Rift in Burundi has geological and chemical features typical of carbonatite-related REE ore deposits, but Nd, Ce, and Sr isotope data on the ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b3edf534b75eb219f151e89c96d2700
http://gfzpublic.gfz-potsdam.de/pubman/item/escidoc:226550
http://gfzpublic.gfz-potsdam.de/pubman/item/escidoc:226550
Publikováno v:
Mineralium Deposita. 18
The isotopic ratios of Pb have been determined from 33 galena samples collected from a variety of occurrences in the north Eifel and north Sauerland. On the basis of the data presented, it is not possible to distinguish between the isotopic character
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::506316c5a80040e62bf85695cd50e1b4
https://doi.org/10.1007/bf00206211
https://doi.org/10.1007/bf00206211
Autor:
Axel Höhndorf, H. Dill
Publikováno v:
Mineralium Deposita. 21
Specimens from strata-bound/stratiform “Kieslager”, lineament-bound, and unconformity-related Pb occurrences from the NE Bavarian Saxothuringian and Moldanubian belts and samples from stibnite and polymetallic Sb-Au quartz veins were analyzed for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13b2ac35eb68c1ea1db56d3d99827850
https://doi.org/10.1007/bf00204353
https://doi.org/10.1007/bf00204353