搜索结果: 1-5 共查到“岩石学 India”相关记录5条 . 查询时间(0.125 秒)
Newer Dolerite dykes, Jharkhand, India: a case study of magma generation, differentiation and metasomatism in a subduction zone setting
Newer Dolerite subduction clouded plagioclase decompression mantle
2017/4/11
The NE-SW, NW-SE and E-W trending Proterozoic Newer Dolerite dykes around Chaibasa, Jharkhand, India are
found to intrude Singhbhum Granites of late Archean age. Clouded plagioclase, bastitised ortho...
New U-Pb zircon ages from Paleo-Mesoarchean TTG gneisses of the Singhbhum Craton, Eastern India
U-Pb geochronology zircon Paleoarchean Singhbhum granite batholith Singhbhum Craton
2017/8/9
Two new U-Pb ages of 3448 ± 19 Ma and 3527 ± 17 Ma were obtained on zircons from the Older Metamorphic Tonalite Gneisses (OMTG), Singhbhum North Orissa Craton, Eastern India. These dated TTG-type OMTG...
Ree Chemistry of Arid Zone Calcrete Profiles-A Case Study From The Thar Desert, India
Arid Zone Calcrete India Ree Chemistry
2009/7/8
Calcrete is the widely prevalent duricrust associated with the weathering profiles of the Thar desert. The studies on REE behaviour within different weathering horizons of calcrete profiles, have rev...
A LAYERED COMPLEX IN SITTAMPUNDI, MADRAS STATE, INDIA
LAYERED COMPLEX IN SITTAMPUNDI MADRAS STATE INDIA
2014/4/8
Nehru (1955) and Subrahmanyam (1956) have reported on the anorthite-bearing and associated rocks of Sittampundi,Madras State. The latter regards them as a layered igneous anorthosite-gabbro series, hi...
CRYSTALLIZATION OF LEUCITE-NEPHELINE-SANIDINE IN BASIC DIFFERENTIATES FROM A PERIDOTITE-DUNITE MASS IN SALEM, MADRAS STATE, INDIA
CRYSTALLIZATION LEUCITE-NEPHELINE-SANIDINE IN BASIC DIFFERENTIATES A PERIDOTITE-DUNITE MASS IN SALEM MADRAS STATE INDIA
2014/4/8
The potassic rocks of Salem occur as dikes and sheets within or marginal to a dunite-peridotite mass that has intruded into Archean Peninsular gneisses, charnockite series, pyroxenites and dolerites. ...