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all geography including DSDP/ODP Sites and Legs
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Africa
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North Africa
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geologic age
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Tertiary
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Mesozoic
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Paleoproterozoic
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igneous rocks
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igneous rocks
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hypabyssal rocks (4)
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kamafugite (1)
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kimberlite (3)
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granites
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aplite (1)
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A-type granites (2)
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granosyenite (3)
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granodiorites
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monzodiorite (3)
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ultramafics
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porphyry (3)
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volcanic rocks
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basalts
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alkali basalts
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flood basalts (1)
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olivine basalt (1)
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tholeiitic basalt (2)
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basanite (2)
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dacites
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glasses
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phonolites
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pyroclastics
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rhyodacites (3)
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tephrite (1)
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trachyandesites (3)
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trachytes (2)
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metamorphic rocks
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tschermakite (1)
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pyroxene group
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jadeite (1)
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wollastonite group
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framework silicates
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myrmekite (2)
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orthosilicates
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zircon group
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sorosilicates
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sheet silicates
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mica group
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sulfides
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molybdenite (1)
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pyrite (1)
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-
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Primary terms
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absolute age (14)
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Africa
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Limpopo Belt (1)
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Madagascar (1)
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North Africa
-
Egypt (1)
-
-
Southern Africa
-
South Africa
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Bushveld Complex (1)
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Merensky Reef (1)
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-
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West Africa
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Nigeria (1)
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Zimbabwe Craton (1)
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-
Arctic region
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Greenland
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Greenland ice sheet (1)
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-
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Asia
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Altai Mountains
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Gorny Altai (2)
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-
Altai Russian Federation
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Gorny Altai (2)
-
-
Amur Russian Federation (1)
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Buryat Russian Federation (2)
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Far East
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China
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Da Hinggan Ling (1)
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North China Platform (1)
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Qilian Mountains (1)
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Qinling Mountains (1)
-
South China Block (2)
-
Xizang China
-
Gangdese Belt (1)
-
-
Yangtze Platform (1)
-
-
Japan (1)
-
-
Himalayas (1)
-
Indian Peninsula
-
India
-
Andhra Pradesh India
-
Anantapur India (2)
-
Prakasam India (1)
-
-
Bihar India (2)
-
Dharwar Craton (2)
-
Karnataka India
-
Closepet Granite (1)
-
-
Madhya Pradesh India (1)
-
Northeastern India
-
Meghalaya India (2)
-
-
Rajasthan India
-
Aravalli Range (1)
-
-
Singhbhum shear zone (1)
-
-
-
Khamar-Daban Range (1)
-
Middle East
-
Iran (1)
-
Israel (1)
-
Turkey
-
Anatolia (1)
-
-
-
Novosibirsk Russian Federation (1)
-
Qiangtang Terrane (1)
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Rudny Altai (1)
-
Sayan
-
Eastern Sayan (1)
-
-
Siberia (1)
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Siberian Platform
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Anabar Shield (1)
-
-
Tien Shan (1)
-
Tomsk Russian Federation (1)
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Transbaikalia (1)
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Tunguska Syneclise (1)
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Tuva Russian Federation (1)
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West Siberia (1)
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Yakutia Russian Federation
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Anabar Shield (1)
-
-
Yana River (1)
-
-
Atlantic Ocean Islands
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Azores
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Sao Miguel Island (1)
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-
-
Australasia
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Australia
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New South Wales Australia
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Hill End Trough (1)
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Yeoval Australia (1)
-
-
-
Papua New Guinea (3)
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-
Canada
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Eastern Canada
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Quebec
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Saguenay County Quebec
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Labrador Trough (1)
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Ungava (1)
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Cenozoic
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Quaternary
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Pleistocene (1)
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Tertiary
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Neogene
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Miocene (4)
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Leg 31
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economic geology (8)
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Europe
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heat flow (1)
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igneous rocks
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hypabyssal rocks (4)
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kamafugite (1)
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kimberlite (3)
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plutonic rocks
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anorthosite (1)
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diabase (2)
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diorites
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
porphyritic texture
Transcrustal magmatic system in lamprophyre dike constructed by multiple magma reservoirs Available to Purchase
METAL AND MINERAL MICROINCLUSIONS IN ADAKITES FROM THE FRAMING OF THE UTANAK MASSIF ( Stanovoi superterrane, Russian Far East ) AS EVIDENCE FOR METAL ENRICHMENT IN ADAKITIC MAGMAS Available to Purchase
Titanomagnetite Rims on Hornblende Phenocrysts in Intermediate Subvolcanic Intrusions, Torud–Ahmad Abad Magmatic Belt, Iran: Examination of Devolatilization and Oxidation Processes Open Access
Geology and genesis of the world-class wollastonite deposit at Shizhushan in South China and implications for exploration Available to Purchase
Research on the Attenuation Characteristics of Frequency Domain Parameters in Different Rock Medium Open Access
Evidence of fluid-induced myrmekite formation after alkali-feldspar megacrysts: an example from a meta-porphyritic granitoid in Makrohar, Madhya Pradesh, India Available to Purchase
The effect of elemental diffusion on the application of olivine-composition-based magmatic thermometry, oxybarometry, and hygrometry: A case study of olivine phenocrysts from the Jiagedaqi basalts, northeast China Available to Purchase
Early Neoproterozoic tectonics in the Marwar Crustal Block, NW India, the relevance of the Phulad Shear Zone, and implications for Rodinia reconstruction Open Access
Petrogenesis of Early Cretaceous volcanic rocks from the Rena-Co area in the southern Qiangtang Terrane, central Tibet: evidence from zircon U-Pb geochronology, petrochemistry and Sr-Nd-Pb–Hf isotope characteristics Available to Purchase
Redefinition of the Petersburg batholith and implications for crustal inheritance in the Dinwiddie terrane, Virginia, USA Open Access
Differentiation of an upper crustal magma reservoir via crystal-melt separation recorded in the San Gabriel pluton, central Chile Open Access
Petrogenesis of the Limerick Igneous Suite: insights into the causes of post-eruptive alteration and the magmatic sources underlying the Iapetus Suture in SW Ireland Open Access
Early Au-rich sulfide liquid saturation explains the low Au endowment of continental intraplate alkaline magmas Available to Purchase
Petrogenesis of Eocene Wangdui adakitic pluton in the western Gangdese belt, southern Tibet: implications for crustal thickening Available to Purchase
Late Mesozoic volcanism in the southern Xiong'er Mountains, eastern Qinling: Partial melting of the subducted Qinling crust underneath North China Available to Purchase
Subduction-related lamproitic signature in intraplate-like volcanic rocks: the case study of the Tallante alkali basalts, Betic Chain, South-Eastern Spain Available to Purchase
Microporphyritic and microspherulitic melt grains, Hiawatha crater, Northwest Greenland: Implications for post-impact cooling rates, hydration, and the cratering environment Open Access
Geologic Structure, Mineralogy, and Geochemistry of the Nerunda Gold Ore Field (Northern Transbaikalia) Available to Purchase
Deformation-driven emplacement-differentiation in the Closepet pluton, Dharwar Craton, South India: an alternate view Available to Purchase
Abstract In the Late Archean north-trending Closepet pluton, trains of euhedral K-feldspar phenocrysts and matrix-supported idiomorphic K-feldspar crystals in the central part of the pluton define oblique-to-pluton margin steep-dipping east/ENE-trending magmatic fabrics. The magmatic fabric is defined by phenocryst-rich and phenocryst-poor layers, with the euhedral porphyries continuous across the layers. The fabrics are near-orthogonal to the gently-dipping gneissic layers in the host gneisses. The fabrics curve adjacent to locally-developed north/NNE-trending melt-hosted dislocations parallel to the axial planes of horizontal/gently-plunging north-trending upright folds in the host gneisses. In the pluton interior, both fabrics in the intrusives formed at supra-solidus conditions, although the volume fraction of melts diminished drastically due to cooling/melt expulsion. At the pluton margin, the north-trending fabric is penetrative and post-dates magma solidification. Within the pluton, the major element oxides, rare earth elements, anorthite contents in plagioclase, and (Mg/Fe + Mg) ratios in biotite decrease with increasing SiO 2 from phenocryst-rich (up to 75% by volume) granodiorite to phenocryst-poor (<15 vol%) granite that broadly correspond to minimum melt composition. The chemical-mineralogical variations in the pluton is attributed to deformation-driven ascent of magma with heterogeneous crystal content, ascending at variable velocities (highest in crystal-poor magma) along oblique-to-pluton margin east/ENE-trending extensional fractures induced by dextral shearing.