Results 121 to 130 of about 231 (146)
Hydrothermal metallogenic processes off the islands of Nisiros and Kos in the Hellenic Volcanic Arc
Marine Geology, 1991 Abstract Two submarine hydrothermal fields off Nisiros and Kos islands in the eastern sector of the Hellenic Volcanic Arc have been investigated using analyses of submarine hydrothermal waters and sediments. Both the waters and the sediments were found to be enriched in Fe, Mn and Zn, together with As, Mo and V in the sediments only, resulting from ...
S P Varnavas, D S Cronan
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Strontium isotope ratios in volcanic rocks from the south-eastern part of the Hellenic arc
Lithos, 1975 Abstract Isotopic ratios of strontium in 9 volcanic rocks from the south-eastern part of the Hellenic arc range from 0.7037 to 0.7075. Within individual series of differentiation, there seems to be a correlation between Sr 87 /Sr 86 and K 2 O/SiO 2 . All strontium isotope data for the Hellenic arc are reviewed.
G.G. Pe, A.R Gledhill
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Geochemistry International, 2014 The geochemical study of 5 sediment cores obtained from different shallow hydrothermal fields along the volcanic arc (Methana, Milos, Kos and Yali), revealed that the degree of rock hydrothermal alteration from one area to another is different and is influenced by the physical and geochemical properties of the hydrothermal venting fluids and the type ...
Pavlos Megalovasilis
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Tectonophysics, 2017 Abstract In subduction zone backarcs, extensional deformation and arc volcanism interact and these processes, together with mass wasting, shape the seafloor morphology. We present a new bathymetric map of the Santorini-Christiana-Amorgos backarc region of the Hellenic subduction zone by merging high-resolution multibeam swath data from the R/V ...
Emilie E E Hooft +2 more
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Hydrothermal sedimentation in the caldera of Santorini, Hellenic Volcanic Arc
Terra Nova, 1995 ABSTRACTSediments in the caldera of Santorini are receiving a hydrothermal input of iron and manganese from presently active hydrothermal vents off the Kameni Islands, and are enriched in these elements in their surface layer. However, greater Fe‐Mn enrichments occur in discrete layers at depth in the cores separated from the surface by Fe‐Mn poor ...
D.S. Cronan +2 more
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Geochemistry of hydrothermally influenced sediments off Methana (western Hellenic volcanic arc)
Geochemistry, 2004 Abstract Surface sediment samples from near-shore shallow water as well as deeper water locations N and NE of the island of Methana were investigated geochemically. Shallow water samples from Thiafi Bay reveal up to 38-fold enrichment of As, associated with elevated contents of Sb, Fe and Zn.
Andreas Hübner +4 more
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The Geochemistry of Hydrothermal Vent Waters from Milos Island, Hellenic Volcanic Arc
Mineralogical Magazine, 1998 The Hellenic Volcanic Arc is a tectonically and volcanically active part of the earth's crust, situated above the subduction zone of the African plate under the Aegean. The arc extends from the Methana peninsula (NE Peloponese) through the greek islands Milos, Santorini, Kos, Nisiros and Yali to the Bodrum peninsula, Turkey (e.g. Fytikas et at., 1986).
Eugenia Valsami‐Jones
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Sediment Stability Conditions West Of Milos Island, West Hellenic Volcanic Arc
, 2007 Thomas Hasiotis +2 more
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Physics and Chemistry of the Earth, Part B: Hydrology, Oceans and Atmosphere, 2000
Suspended particulate matter (SPM) separated from waters discharging from a number of submarine hydrothermal vents at Palaeochori bay, Milos island was analysed for major and trace elements (i.e. Fe, Mn, Cu, Pb, Cd, Ca, Sr, Si, Al, Ba).
Varnavas SP +5 more
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Suspended particulate matter (SPM) separated from waters discharging from a number of submarine hydrothermal vents at Palaeochori bay, Milos island was analysed for major and trace elements (i.e. Fe, Mn, Cu, Pb, Cd, Ca, Sr, Si, Al, Ba).
Varnavas SP +5 more
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BANDED IRON-DEPOSITING SHALLOW SUBMARINE HYDROTHERMAL VENT FIELDS ON THE HELLENIC VOLCANIC ARC
Geological Society of America Abstracts with Programs, 2019 Ernest Chi Fru
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