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South Scandinavian joints and Alpine/Atlantic-ridge tectonics
joints neotectonics alps mid-atlantic ridge Sweden bohus granite Norway Scandinavia
2015/9/30
Field observations and studies of the joints and dykes in an area shed light on its younger tectonic development; thus, joint orientations measured in Southern Sweden and in Norway have been statistic...
Regional mantle heterogeneity regulates melt production along the Réunion hotspot-influenced Central Indian Ridge
ridge-hotspot interaction MORB geochemistry crustal production upper mantle heterogeneity
2014/4/11
To ascertain factors controlling melt production along a typical distal, ‘hotspot-interacting’ mid-ocean ridge, we investigated
the extent and distribution of both plume-related and plume-unrelated b...
Petrogenesis of the ridge subduction-related granitoids from the Taitao Peninsula, Chile Triple Junction Area
granite ridge-subduction slab-melting Taitao adakite TTG
2013/4/11
Geochemical compositions are reported for Late Miocene to Pliocene granitoids from the Taitao Peninsula near the
Chile ridge subduction zone. Major element compositions of Taitao granitoids show a re...
An Initial Investigation on the Distribution, Living Conditions and Traits of the Hazel in Great Xing’an Ridge Region
Corylus Heterophylla Corylus Mandshurica Distribution Quality Condition
2011/12/9
To take full advantage of the natural hazel resources and improve its yield and quality in Great Xing’an Ridge region, we carried out an initial investigation. The result showed that: there are two sp...
Geochemistry of REE and yttrium in hydrothermal fluids from the Endeavour segment, Juan de Fuca Ridge
hydrothermal fluids rare earth element Juan de Fuca Ridge species abundance Europium anomaly
2008/8/10
Rare earth element and yttrium in hydrothermal fluids sampled from six high temperature vents and two diffuse flow sites on the Endeavour segment, Juan de Fuca Ridge by US-CHINA Joint Deep Dive Cruise...
A hydrous melting and fractionation model for mid-ocean ridge basalts: Application to the Mid-Atlantic Ridge near the Azores
A hydrous melting mid-ocean ridge basalts
2004/4/8
The major element, trace element, and isotopic composition of mid-ocean ridge basalt glasses affected
by the Azores hotspot are strongly correlated with H2O content of the glass. Distinguishing the r...
A Deep-Water Glauconitization Process on the Ivory Coast-Ghana Marginal Ridge (ODP Site 959): Determination of Fe3+-Rich Montmorillonite in Green Grains
Eastern Atlantic Fe3+-rich Montmorillonite Foraminifer Fillings Glauconitization Green Clay Pleistocene
2001/12/1
Abstract: The mineral and chemical composition of green glauconitic grains from ODP Site 959 (2100 m water depth) located on the northern flank of the Ivory Coast-Ghana Marginal Ridge was studied. Rec...
Formation of Fe-silicates and Fe-oxides on bacterial surfaces in samples collected near hydrothermal vents on the Southern Explorer Ridge in the northeast Pacific Ocean
Formation Fe-silicates Fe-oxides hydrothermal vents Southern Explorer Ridge the northeast Pacific Ocean
1998/11/30
Samples collected in low-temperature (2–508 C) waters near hydrothermal vents of the Southern Explorer Ridge, in the northeast Pacific Ocean, contained fine ( ,500 nm) Fe-and Mn-oxide and Fe-silicate ...
Gordaite [Zn4Na(OH)6(SO4)Cl6H2O]: Second occurrence in the Juan de Fuca Ridge, and new data
Gordaite [Zn4Na(OH)6(SO4)Cl6H2O] Second occurrence Juan de Fuca Ridge
1998/9/30
A hydrous zinc- and sodium-rich hydroxy-chlorosulfate, discovered in a sulfide sample collected by the Deep Sea Recovery Vehicle (DSRV) Alvin in 1984, is identified as gor-daite, Zn4Na(OH)6SO4Cl·6H2O,...
Stable Isotope Geochemistry of Kaolinite from the “White Section,” Black Ridge, Clermont, Central Queensland: Implications for the Age and Origin of the “White Section”
Inversion Isotopic exchange Kaolinite Late Triassic Low δD Weathering
1994/6/1
Kaolinite from the Black Ridge, Clermont, has relatively low δ18O (12.3‰ to 14.8‰) and very low δD values with a large variation (−120‰ to −85‰). Comparison of these data with those from t...
MINERALOGIC VARIATIONS IN A PLEISTOCENE HIGH-RESOLUTION EOLIAN RECORD FROM THE OWEN RIDGE, WESTERN ARABIAN SEA (SITE 722): IMPLICATIONS FOR SEDIMENT SOURCE CONDITIONS AND MONSOON HISTORY
MINERALOGIC VARIATIONS SOURCE CONDITIONS MONSOON HISTORY
1991/11/1
Bulk mineralogy of the terrigenous fraction of 99 samples from ODP Site 722 on the Owen Ridge, western Arabian Sea, has been determined by x-ray diffraction, using an internal standard method. The sam...
Weathering of Iron-Bearing Minerals in Soils and Saprolite on the North Carolina Blue Ridge Front: II. Clay Mineralogy
Chlorite Goethite Hematite Iron Kaolinite Mossbauer spectroscopy Saprolite Soils Vermiculite Weathering
1989/11/1
Abstract: The mineralogy of the clay fraction was studied for soils and saprolite on two Blue Ridge Front mountain slopes. The clay fraction contained the weathering products of primary minerals in th...
Weathering of Iron-Bearing Minerals in Soils and Saprolite on the North Carolina Blue Ridge Front: I. Sand-Size Primary Minerals
Almandine Biotite Chlorite Iron Magnetite Saprolite Soils Weathering
1989/11/1
Abstract: The weathering products of primary biotite, chlorite, magnetite, and almandine in mica gneiss and schist in the North Carolina Blue Ridge Front were determined. Sand-size grains of biotite, ...
Expandable Sepiolite from Ninetyeast Ridge, Indian Ocean
Chemical composition Ethylene glycol Expansion Sepiolite X-ray powder diffraction
1989/8/1
The structure of sepiolite from a piston core obtained on Ninetyeast Ridge in the Indian Ocean was modified by exposure to ethylene glycol vapor. With ethylene glycol, the sepiolite 011 X-ray powder d...