Update search
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
NARROW
Format
Article Type
Journal
Publisher
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Asia
-
Indian Peninsula
-
India
-
Andhra Pradesh India
-
Prakasam India (3)
-
-
Bastar Craton (1)
-
Deccan Plateau (1)
-
Dharwar Craton (1)
-
Ghats
-
Eastern Ghats (2)
-
-
Satpura Range (1)
-
Southern Granulite Terrain (1)
-
-
-
-
-
commodities
-
metal ores
-
copper ores (1)
-
uranium ores (1)
-
-
-
elements, isotopes
-
metals
-
actinides
-
thorium (1)
-
uranium (1)
-
-
rare earths (1)
-
-
-
geochronology methods
-
U/Pb (1)
-
-
geologic age
-
Mesozoic
-
Jurassic
-
Rajmahal Series (1)
-
-
-
Phanerozoic (1)
-
Precambrian
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic (1)
-
Paleoproterozoic (1)
-
-
-
-
-
igneous rocks
-
igneous rocks
-
plutonic rocks
-
gabbros (1)
-
granites
-
A-type granites (1)
-
leucogranite (1)
-
-
lamprophyres (2)
-
pegmatite (1)
-
syenites
-
nepheline syenite (2)
-
quartz syenite (1)
-
shonkinite (2)
-
-
-
volcanic rocks
-
basalts
-
flood basalts (2)
-
-
-
-
-
metamorphic rocks
-
metamorphic rocks
-
schists (1)
-
-
-
minerals
-
silicates
-
framework silicates
-
feldspar group
-
alkali feldspar (1)
-
plagioclase (1)
-
-
nepheline group
-
nepheline (1)
-
-
-
orthosilicates
-
nesosilicates
-
olivine group
-
olivine (1)
-
-
zircon group
-
zircon (1)
-
-
-
-
-
sulfides
-
copper sulfides (1)
-
-
-
Primary terms
-
absolute age (1)
-
Asia
-
Indian Peninsula
-
India
-
Andhra Pradesh India
-
Prakasam India (3)
-
-
Bastar Craton (1)
-
Deccan Plateau (1)
-
Dharwar Craton (1)
-
Ghats
-
Eastern Ghats (2)
-
-
Satpura Range (1)
-
Southern Granulite Terrain (1)
-
-
-
-
crust (1)
-
geochemistry (3)
-
igneous rocks
-
plutonic rocks
-
gabbros (1)
-
granites
-
A-type granites (1)
-
leucogranite (1)
-
-
lamprophyres (2)
-
pegmatite (1)
-
syenites
-
nepheline syenite (2)
-
quartz syenite (1)
-
shonkinite (2)
-
-
-
volcanic rocks
-
basalts
-
flood basalts (2)
-
-
-
-
inclusions (1)
-
intrusions (3)
-
magmas (5)
-
mantle (2)
-
Mesozoic
-
Jurassic
-
Rajmahal Series (1)
-
-
-
metal ores
-
copper ores (1)
-
uranium ores (1)
-
-
metals
-
actinides
-
thorium (1)
-
uranium (1)
-
-
rare earths (1)
-
-
metamorphic rocks
-
schists (1)
-
-
metamorphism (1)
-
Phanerozoic (1)
-
plate tectonics (1)
-
Precambrian
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic (1)
-
Paleoproterozoic (1)
-
-
-
-
tectonics (1)
-
weathering (1)
-
-
rock formations
-
Deccan Traps (1)
-
GeoRef Categories
Era and Period
Book Series
Date
Availability
Evolution of the Eastern Ghats Belt, India: A Magmatic Perspective Available to Purchase
Uranium and Thorium Anomalies in the ~2.5 Ga Vendodu Leucogranite, Nellore Schist Belt, SE India and its Potential to Generate Uranium Deposits Available to Purchase
Geochemical Evidences for Possible Absence of Cu-Sulfide Deposits in the Deccan Volcanic Province, India Available to Purchase
Fractal Analysis of In Situ Host Rock Nepheline Syenite Xenoliths in a Micro-Shonkinite Dyke (The Elchuru Alkaline Complex, SE India) Available to Purchase
Density, Viscosity and Velocity (Ascent Rate) of Alkaline Magmas Available to Purchase
Mantle source heterogeneity in continental mafic Large Igneous Provinces: insights from the Panjal, Rajmahal and Deccan basalts, India Available to Purchase
Abstract: In this paper we illustrate the geochemical diversity of the basalts of Panjal ( c. 289 Ma), Rajmahal ( c. 117 Ma) and Deccan ( c. 65 Ma) continental large igneous provinces (continental LIPs) from India as controlled by multiple mantle sources. The Panjal primitive basalts are formed by 5–20%, Rajmahal basalts by 10–20% and Deccan picritic basalts by 1–20% melting of the mantle. The depth of melting beneath Deccan is greater than beneath Rajmahal, which greater than beneath Panjal. We have categorized the Panjal, Rajmahal and Deccan basalts into Type I and Type II. The Type I basalts with lower La/Nb, Th/Nb and Th/Yb ratios and higher ε Nd i values ( ε Nd i = −3 to +8) are derived from the sublithospheric sources; some of the Type I basalts represent lithosphere-contaminated melts. The Type II basalts with higher La/Nb, Th/Nb and Th/Yb ratios and lower ε Nd i values ( ε Nd i = −20 to −3) are produced from the subcontinental lithosphere. We estimate that lithosphere and sublithosphere (plume and/or E-MORB patches within asthenosphere) have contributed, respectively, approximately 67 and 33% to the Panjal, 52 and 48% to Rajmahal, and 28 and 72% to Deccan LIPs. Fertility of the Indian subcontinental lithosphere may have increased with decreasing age related to the break-up of Gondwana. Supplementary material: References for the geochemical data, extracted from the GEOROC database, on the basaltic rocks from Panjal, Rajmahal and Deccan Large Igneous Provinces are available at: https://doi.org/10.6084/m9.figshare.c.3821881