 | | Journal (article/letter/editorial) | | The Petrology and Geochemistry of Vesteris Seamount, Greenland Basin—an Intraplate Alkaline Volcano of...typescript accepted 7 May 1993) ABSTRACT Vesteris Seamount is a solitary alkaline volcano in the Greenland...been active in Quaternary times. The lavas from Vesteris studied here consist of basanites, tephrites,...green cores to many clinopyroxene phenocrysts at Vesteris suggest a fractionation history beginning at high...high pressure in the mantle. Differences between Vesteris and Jan Mayen in the ratios of highly incompatible |  | Haase, K. M., Devey, Colin W., Mertz, Dieter F., Stoffers, Peter, Garbe-Schönberg, Dieter (1996) Geochemistry of lavas from Mohns Ridge, Norwegian-Greenland Sea: implications for melting conditions and magma sources near Jan Mayen. Contributions to Mineralogy and Petrology, 123 (3) 223-237 doi:10.1007/s004100050152 | Journal (article/letter/editorial) | | temperature of a “wet” mantle. Mohns MORB (mid ocean ridge basalt) and Jan Mayen area alkali basalts...and a spreading axis in this part of the North Atlantic. Introduction While the geophysical processes...more enriched than “normal” depleted MORB (mid ocean ridge basalt) is still debated and various processes...samples 91-2 and 77-1 are small pieces of basaltic glass from sediment box corers. The samples from the Mohns...possible, glass was used for all analyses (denoted by “gl” behind the sample number). Glass was handpicked |  | | Journal (article/letter/editorial) | | GOLDSCHMIDTCONFERENCE TOULOUSE 1998 Using glass inclusions to investigate a heterogeneous mantle: An...Montreal, Quebec, H3A 2A7, Canada The study of glass inclusions in early-crystallized phenocrysts in...Sobolev and Shimizu, 1993; Nielsen et al. 1995). Glass inclusions may sample melt compositions not available...sources of different composition has occurred, glass inclusions can potentially provide information on...discussion We have analysed olivine-hosted (Fo84-Fo92) glass inclusions from a suite of picritic rocks from Baffin |  | | Journal (article/letter/editorial) | | volcanism associated with the opening of the North Atlantic (Knox and Morton, 1988; Knox, 1998). Equivalents... to confirm the correlation between the North Atlantic and the Tethyan section for these late Palaeocene...standard series, were sealed into Suprasil quartz glass tubes. For standards, finely powdered Allende meteorite...similar to that of, e.g., rocks from the Vesteris seamount off East-Greenland Geochemistry of lower...to 20 k.y.), with water temperature in the deep ocean and high-latitude surface water rising by 4° to |  | | Report (chapter) | | changes in wider environmental controls such as ocean-surface temperature or ice-sheet volume. In order...fracture zones to the SW and NE, and by the mid-ocean spreading centre of the Mohns Ridge to the SE. Geophysical...JR51-GC20 is from the lower flanks of a volcanic seamount within the basin. Core JR51-GC27 was collected...12 990+60 years BP (CAMS-77203)(corrected for an ocean reservoir effect of 550 years in East Greenland)...was recovered from the south side of the Vesteris Seamount, an isolated volcanic edifice at 73 ~ 30' |  | Ivarsson, Magnus, Kilias, Stephanos, Broman, Curt, Neubeck, Anna, Drake, Henrik, Chi Fru, Ernest, Bengtson, Stefan, Naden, Jonathan, Detsi, Kleopatra, Whitehouse, Martin (2019) Exceptional Preservation of Fungi as H2-Bearing Fluid Inclusions in an Early Quaternary Paleo-Hydrothermal System at Cape Vani, Milos, Greece. Minerals, 9 (12) 749 doi:10.3390/min9120749 | Journal (article/letter/editorial) | | Sweden; henrik.drake@lnu.se School of Earth and Ocean Sciences, Institute for Geobiology and Geochemistry...the samples. The sample material was placed on a glass slide on an Olympus BX41 microscope coupled to the...subseafloor basalts collected at Koko Seamount, Pacific Ocean [10]; thus, its usage for chitin staining...indicating a deep and frequent presence in the ocean floors [7,8]. The large number of hydrocarbon inclusions...fungi obtained from dredged samples at the Vesteris Seamount, Greenland Basin. The hyphal mycelium was |  | | Journal (article/letter/editorial) | | Troodos pillow lavas to host ichnofossils in volcanic glass [17,18] but the current study focus on filamentous...a supra-subduction zone as an ocean spreading ridge in the Tethys Ocean during the Upper Cretaceous [19]...veins and vesicles in pillow lavas that represent ocean crust of Cretaceous age [19]. Similar filamentous...fossilized microorganisms. In previous papers, volcanic glass in pillow lavas from Troodos have been shown to...between 2–27 µm, but fossilized hyphae from the ocean floor have been shown to possess wider diameters |  | Zhang, Zhaochong, Feng, Chengyou, Li, Zhaonai, Li, Shucai, Xin, Ying, Li, Zhaomu, Wang, Xianzheng (2002) Petrochemical study of the Jingpohu Holocene alkali basaltic rocks, northeastern China. GEOCHEMICAL JOURNAL, 36 (2) 133-153 doi:10.2343/geochemj.36.133 | Journal (article/letter/editorial) | | distinct geochemical signatures compared with mid-ocean ridge basalts (MORB), but exhibit many similarities...minerals, and are mostly strongly porphyritic. Glass is present in the samples of the chilled border...mm, with intergranular opaques or interstitial glass and minor nepheline. The tephrites are also porphyritic...diameter, with up to 20 vol.% of brown interstitial glass. 14 C D ATING OF THE HOLOCENE BASALTS Three...L. (1997) Plumelithospheric interactions in the ocean basins: constraints from the source mineralogy. |  | Panter, Kurt S, Hart, Stanley R, Kyle, Philip, Blusztanjn, Jerzy, Wilch, Thom (2000) Geochemistry of Late Cenozoic basalts from the Crary Mountains: characterization of mantle sources in Marie Byrd Land, Antarctica. Chemical Geology, 165 (3) 215-241 doi:10.1016/s0009-2541(99)00171-0 | Journal (article/letter/editorial) | | have higher plagioclase contents relative to the glass-rich pyroclasts. Basalt TW92-169 contains significant...patterns of Crary Mountains samples are typical of ocean island basalts ŽOIB., showing the characteristic...consider the fact that no known plume-related seamount chains occur between New Zealand and Antarctica...L., 1997. Plume–lithosphere interactions in the ocean basins: constraints from the source mineralogy....between calcic amphibole and Ti-rich basanitic glass at 1.5 Gpa, 11008C. Mineral. Mag. 58a, 207–208. |  | | Journal (article/letter/editorial) | | is the Comores Archipelago in the western Indian Ocean, and interpreted to have taken the form of modal...analysed have experienced compositional modi- Indian Ocean MORB), with only limited contributions from fications...mantle phase after extraction of LGT magmas at low ocean island basalts degrees of melting. Low absolute...incompatible elements, the high the western Indian Ocean (Fig. 1). Detailed petro- •Correjponding author...Lavas from the Gomores Archipelago, Western Indian Ocean: Petrogenesis and Mantle Source Region Characteristics |  | | Journal (article/letter/editorial) | | the ‰ notation relative to Vienna Standard Mean Ocean Water (VSMOW; Coplen, 1994). Analyses of quartz...element abundances similar to HIMU (high U/Pb)-type ocean island basalts (OIB). Mt Sidley basanites have lower...values and incipient alteration (palagonitized glass and amygdaloidal zeolites and calcite). The low...interaction is restricted to the alteration of available glass and secondary mineralization by solution-precipitation...values (<5‰), indicating hydration-exchange between glass and Antarctic meteoric waters (–35‰). Anorthoclase |  | | Report (issue) | | regions observed or predicted to be extending. Ocean island basalt-like geochemistry is evidence for...erupted ranges from trivial in the case of minor seamount chains to ~108 km3 for the proposed composite...emplacement, which is often poorly known. Although ocean island basalt–type geochemistry is generally agreed...discussed from the Atlantic and Pacific oceans, which show much commonality. Each ocean hosts a single,...volcanism rather than at their beginnings. Each ocean contains several melting anomalies on or near spreading |  | | Journal (article/letter/editorial) | | Greenland Bulletin 24 Keywords East Greenland, North Atlantic, rifted volcanic margin, large igneous province...Greenland margin and its setting within the North Atlantic region . . . .64 . The coastal flexure and its.... . . . . . . . . . .69 . Mechanisms of North Atlantic rifting . . . . . . . . . . . . . . . . . . ....Greenland Bulletin 24, 96 pp. The Palaeogene North Atlantic Igneous Province is among the largest igneous...(c. 73°N) to Shannon (c. 75°N). In addition, the Ocean Drilling Project penetrated basalt at five sites |  | | Book (edition) | | Hochstein and Patrick R. L. Browne 643 Deep Ocean Hydrothermal Vents 857 David A. Butterfield 663...Ignimbrites and Block-and-Ash Flow Deposits Deep Ocean Hydrothermal Vents 857 Impacts of Eruptions on...University of Washington Seattle, Washington, USA Deep Ocean Hydrothermal Vents JON P. DAVIDSON University of...preparing for the first manned exploration of the Mid-Ocean Ridge during Project FAMOUS. This was a critical...main battlefields between the plates: the rifts or ocean ridges and the subduction zones. The most important |
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