Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Dietrich Ackermand"'
Publikováno v:
Geological Society, London, Special Publications. 338:139-161
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75c3828cb88448187034160bba3cba1d
https://doi.org/10.1144/sp338.7
https://doi.org/10.1144/sp338.7
Autor:
Dietrich Ackermand, G. Morteani
Publikováno v:
Mineralogy and Petrology. 80:59-81
The investigated Al-phosphate- and Al-borosilicate-bearing metaquartzite horizon belongs to the Middle Proterozoic Serra de Vereda member of the Sao Marcos Formation of the northern Espinhaco fold belt. Outcrops are located in the NNW-SSE trending hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b85f6f04ae4284102af15fcaad4381ce
https://doi.org/10.1007/s00710-003-0019-z
https://doi.org/10.1007/s00710-003-0019-z
Autor:
David T. Sandwell, Roger Hekinian, G. Ramillien, A. Sabetian, K. Perrot, J. Phipps Morgan, G. A. Dehghani, Marcia Maia, Dietrich Ackermand, John O'Connor, Peter Stoffers, David F. Naar, Pascal Gente, Sidonie Révillon
Publikováno v:
Marine Geology. 167:61-84
The Foundation hotspot-Pacific-Antarctic Ridge (PAR) system is the best documented case of a fast spreading ridge approaching a hotspot and interacting with it. The morphology, crustal structure inferred from gravity anomalies and the chemical compos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d46e56365d23f1783fcb7d96e2f67b5
https://doi.org/10.1016/s0025-3227(00)00023-2
https://doi.org/10.1016/s0025-3227(00)00023-2
Publikováno v:
Mineralogy and Petrology. 68:257-269
¶The Betroka sinistral shear belt is a major geotectonic unit in the Precambrian of southern Madagascar. It consists of migmatitic paragneiss commonly interlayered with phlogopite-bearing diopsidite, phlogopite-humite-diopside-spinel marble, sillima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ec4c6cad189a236b6cae4da98fbce19
https://doi.org/10.1007/s007100050012
https://doi.org/10.1007/s007100050012
Autor:
Sidonie Révillon, Dietrich Ackermand, Peter Stoffers, Roger Hekinian, Marcia Maia, Marcel Bohn
Publikováno v:
Marine Geology. 160:199-223
The study of different magmatic provinces between the Resolution fracture zone (33°S-131°W) and the Pacific-Antarctic Ridge (PAR) axis (37°S-111°W) suggests that similar processes of interaction between hotspot and spreading axial magmatism occur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36f2d92b41fe0fb17aa11b201bf702aa
https://doi.org/10.1016/s0025-3227(99)00027-4
https://doi.org/10.1016/s0025-3227(99)00027-4
Publikováno v:
Mineralogy and Petrology. 66:259-270
Kornerupine has been reported from several localities in the Grenville Province. It is most abundant and accessible within quartz - sillimanite - K-feldspar - tourmaline -Fe/Ti-oxides - garnet paragneiss, forming a 300m by 1500m lens in diopside- and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aaf6ffc6fe475bf6a23d436964e72877
https://doi.org/10.1007/bf01164496
https://doi.org/10.1007/bf01164496
Publikováno v:
Mineralogy and Petrology. 64:149-162
The Pitcairn hotspot, located about 60 km east of Pitcairn Island (South Pacific), consists of several active volcanoes 60%) is the main process responsible for differentiating these rock-types from an enriched source. Pyrrhotite and rare chalcopyrit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51dd7975c04fbbd840c87b78b8e91784
https://doi.org/10.1007/bf01226567
https://doi.org/10.1007/bf01226567
Autor:
Giulio Morteani, Dietrich Ackermand
Publikováno v:
European Journal of Mineralogy. 8:853-870
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ccd3dd2b9f62f7a5b09a2a2294d498e
https://doi.org/10.1127/ejm/8/4/0853
https://doi.org/10.1127/ejm/8/4/0853
Publikováno v:
Mineralogical Magazine. 55:71-80
Kornerupine-rich layers up to several centimetres thick with minor sillimanite, spinel, Fe oxide and ilmenite occur in a diopsidite in sillimanite-cordierite gneiss south of Beraketa (24°27′S, 46°48′E), southern Madagascar. Kornerupine, sillima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68908de884d0a5a77f80f8a9398f1a63
https://doi.org/10.1180/minmag.1991.055.378.06
https://doi.org/10.1180/minmag.1991.055.378.06
