Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Stephan Hoernes"'
Publikováno v:
Chemical Geology. 354:203-215
Highlights: • Some differentiated alkaline rocks may evolve by FC or AFC but not both • Analyses of acid-leached samples necessary to detect unsupported 87Sr • Crustal contamination hardly detectable in high-Sr lavas but obvious in low-Sr lavas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24d2e308b46e4c75ef39e2b4d97a396b
https://doi.org/10.1016/j.chemgeo.2013.06.026
https://doi.org/10.1016/j.chemgeo.2013.06.026
Publikováno v:
Journal of Petrology
Jung, S.; Vieten, K.; Romer, R. L.; Mezger, K.; Hoernes, S.; Satir, M. (2012). Petrogenesis of Tertiary Alkaline Magmas in the Siebengebirge, Germany. Journal of petrology, 53(11), pp. 2381-2409. Oxford University Press 10.1093/petrology/egs047
Jung, S.; Vieten, K.; Romer, R. L.; Mezger, K.; Hoernes, S.; Satir, M. (2012). Petrogenesis of Tertiary Alkaline Magmas in the Siebengebirge, Germany. Journal of petrology, 53(11), pp. 2381-2409. Oxford University Press 10.1093/petrology/egs047
Basanites from theTertiary Siebengebirge area of Germany (part of the Central European Volcanic Province; CEVP) have high Mg# (40·60), moderate to high Cr (4 300 ppm) and Ni (4 200 ppm) contents and strong light rare earth element enrichment, but sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f03890f10ec23de169d45dc55c802d40
https://doi.org/10.1093/petrology/egs047
https://doi.org/10.1093/petrology/egs047
Publikováno v:
Lithos. 111:236-251
The Torrabaai-Koigabmond Complex (southern Kaoko Belt, Namibia) consists of three main intrusive rock types including metaluminous hornblende- and titanite-bearing quartz diorites, metaluminous hornblende- and biotite-bearing granodiorites and peralu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47b1ec78ffeb96c388c3103282d050fa
https://doi.org/10.1016/j.lithos.2008.10.010
https://doi.org/10.1016/j.lithos.2008.10.010
Publikováno v:
European Journal of Mineralogy
Anhydrous mineral assemblages in felsic and mafic rocks from the Saxon Granulite Massif, part of the central European Variscan Belt, preserve O-isotope equilibrium fractionations recording temperatures of 1000–1020 °C. Although ultrahigh-temperatu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8e1ea6b446a37279648927277c82fd2
https://doi.org/10.1127/0935-1221/2008/0020-1858
https://doi.org/10.1127/0935-1221/2008/0020-1858
Publikováno v:
Lithos. 96:415-435
Major element, trace element and Nd–Sr–Pb–O isotope data for a suite of Neo-Proterozic, pre-orogenic, rift-related syenites from the Northern Damara orogen (Namibia) constrain their sources and petrogenesis. New U–Pb ages obtained on euhdreal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8b9ea6070867a0fe7520fd5f31a38d3
https://doi.org/10.1016/j.lithos.2006.11.005
https://doi.org/10.1016/j.lithos.2006.11.005
Publikováno v:
Naturwissenschaften. 93:616-621
Previous palaeobotanical and palynological studies on coals from Euramerican Pennsylvanian ( identical with Late Carboniferous) coal basins indicate a major change in coal-swamp floras, especially at the Westphalian-Stephanian ( approximately Kasimov
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ee93139f446042b206e106281ce42a5
https://doi.org/10.1007/s00114-006-0150-x
https://doi.org/10.1007/s00114-006-0150-x
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 240:305-317
The main objective of the present study was to clarify if the fernane derivatives 5-methyl-10(4-methylpentyl)-des-A-25-norferna-5,7,9-triene (MATH), 25-norferna-5,7,9-triene (MAPH), 24,25-dinorferna-1,3,5,7,9-pentaene (DAPH 1) and iso-25-norferna-1,3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b99522f1bd2a5fbed208128a14b3fe71
https://doi.org/10.1016/j.palaeo.2006.03.054
https://doi.org/10.1016/j.palaeo.2006.03.054
Publikováno v:
The Journal of Geology. 113:651-672
Geochemical and Nd‐Sr‐O whole rock isotope data and Pb isotope data from leached feldspars for a suite of synorogenic (ca. 540 Ma) syenites and granites from the northern part of the Proterozoic Damara orogen (Namibia) constrain their sources and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb61e9d1449b52e228e8538163a48228
https://doi.org/10.1086/467475
https://doi.org/10.1086/467475
Autor:
Alexander F.M. Kisters, Jens Schneider, Jochen Kolb, Sven Sindern, Stephan Hoernes, F. Michael Meyer
Publikováno v:
Mineralium Deposita. 40:473-491
Gold mineralization at Kochkar (Urals, Russia) is hosted mainly by quartz lodes, which developed at lithological contacts between mafic dikes and granitoids of the Plast massif during late Carboniferous to early Permian, regional E–W compression in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c52852815a624b6d452032fb3017942
https://doi.org/10.1007/s00126-005-0020-z
https://doi.org/10.1007/s00126-005-0020-z
Publikováno v:
European Journal of Mineralogy. 17:483-493
We introduce a new approach for tracing the origin submerged entry nozzle precipitates (clogging) in continuous casting processes using stable oxygen isotopes. The isotopic signatures of possible oxygen sources are compared with the isotope ratios in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1d4d2d4b142d5dfccb3651348b4276b
https://doi.org/10.1127/0935-1221/2005/0017-0483
https://doi.org/10.1127/0935-1221/2005/0017-0483