Zobrazeno 1 - 10 of 28 pro vyhledávání: '"David A. Vanko"'
2
Heating and freezing experiments on aqueous fluid inclusions in anhydrite: Recognition and effects of stretching and the low-temperature formation of gypsum
Autor: David A. Vanko, Wolfgang Bach
Publikováno v: Chemical Geology. 223:35-45
Aqueous fluid inclusions in anhydrite that are frozen during microthermometry commonly develop new daughter crystals. Heating these inclusions induces the new daughter crystals to decompose. Repeated cycles of crystal growth and decomposition may res
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::51b3af3dfe2bef82d1857ce0c72528a7
https://doi.org/10.1016/j.chemgeo.2004.11.021
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3
Linking basement carbonate vein compositions to porewater geochemistry across the eastern flank of the Juan de Fuca Ridge, ODP Leg 168
Autor: Mark E. Cooper, David A. Vanko, Damon A. H. Teagle, Rosalind M. Coggon
Publikováno v: Earth and Planetary Science Letters. 219:111-128
Leg 168 of the Ocean Drilling Program (ODP) investigated the heat flow, fluid chemistry and crustal alteration associated with ridge flank hydrothermal systems. Ten sites were drilled on the eastern flank of the Juan de Fuca Ridge, along an 80 km tra
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5ca0cdd0921f4326a092f583e1415712
https://doi.org/10.1016/s0012-821x(03)00697-6
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4
Drill core-based facies reconstruction of a deep-marine felsic volcano hosting an active hydrothermal system (Pual Ridge, Papau New Guinea, ODP Leg 193)
Autor: H. Paulick, David A. Vanko, C.J. Yeats
Publikováno v: Journal of Volcanology and Geothermal Research. 130:31-50
Pual Ridge is a deep-marine, felsic volcanic edifice in the eastern Manus back-arc basin (Papua New Guinea) with an estimated volume of ∼6 to 9 km 3 . It is 1–1.5 km wide, 20 km long and rises 500–600 m above the surrounding ocean floor. The ac
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::81e779617b08949da0c8a7e0fbab4042
https://doi.org/10.1016/s0377-0273(03)00275-0
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5
Controls of fluid chemistry and complexation on rare-earth element contents of anhydrite from the Pacmanus subseafloor hydrothermal system, Manus Basin, Papua New Guinea
Autor: Susan E. Humphris, Stephen Roberts, David A. Vanko, Wolfgang Bach, Paul R. Craddock, C.J. Yeats, Raymond A Binns
Publikováno v: Mineralium Deposita. 38:916-935
Ocean Drilling Program (ODP) leg 193 successfully drilled four deep holes (126 to 386 m) into basement underlying the active dacite-hosted Pacmanus hydrothermal field in the eastern Manus Basin. Anhydrite is abundant in the drill core material, filli
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cb4a4addf164d92158edd8b68b052743
https://doi.org/10.1007/s00126-002-0325-0
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7
Hydrothermal anorthitization of plagioclase within the magmatic/hydrothermal transition at mid-ocean ridges: examples from deep sheeted dikes (Hole 504B, Costa Rica Rift) and a sheeted dike root zone (Oman ophiolite)
Autor: Christine Laverne, David A. Vanko
Publikováno v: Earth and Planetary Science Letters. 162:27-43
The unique petrological record from the deep sheeted dikes of ODP Hole 504B gives insight into the magmatic/hydrothermal transition and the hydrothermal reaction zone at mid-ocean ridges. A high-temperature peak hydrothermal event at Hole 504B, defin
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::95b1704d38556f21849f02033f518d06
https://doi.org/10.1016/s0012-821x(98)00155-1
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8
Major-element ratios in synthetic fluid inclusions by synchrotron X-ray fluorescence microprobe
Autor: Robert J. Bodnar, Mark L. Rivers, David A. Vanko, Stephen R. Sutton
Publikováno v: Chemical Geology. 109:125-134
Individual fluid inclusions in quartz were investigated by synchrotron radiation X-ray fluorescence (SXRF) microprobe to develop protocols for major-element microanalysis. Studies were conducted of synthetic fluid inclusions in Brazilian quartz that
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::11b3e69bbf216c5646c64dd8105b78c9
https://doi.org/10.1016/0009-2541(93)90066-r
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9
Determination of rare earth elements in fluid inclusions by inductively coupled plasma-mass spectrometry (ICP-MS)
Autor: R.C. Seeley, A.M. Ghazi, David A. Vanko, Edwin Roedder
Publikováno v: Geochimica et Cosmochimica Acta. 57:4513-4516
An inductively coupled plasma-mass spectrometer (ICP-MS) is used to determine rare earth element (REE) abundances in fluid inclusions. Quartz concentrates from the Bingham porphyry Cu-Mo deposit, Utah, USA, and from a quartz vein in brecciated amphib
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a37f565d5f2d53843e9f5982aca57008
https://doi.org/10.1016/0016-7037(93)90500-v
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10
Geochemistry and origin of a black mudstone in a volcaniclastic environment, Ordovician Lower Rhyolitic Tuff Formation, North Wales, UK
Autor: William J. Fritz, David A. Vanko
Publikováno v: Sedimentology. 39:663-674
Black mudstones in marine volcaniclastic environments have been interpreted both as non-volcanic ‘background’sedimentation and as fine grained vitric dust from the waning stages of primary volcanism. Although difficult to distinguish by standard
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2f3715c0ebbf7fb16aaadb2d390fd029
https://doi.org/10.1111/j.1365-3091.1992.tb02143.x
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