Geology, genetic types, and origin of graphite in South Kerala, India

Soman, K.; Lobzova, R. V.; Sivadas, K. M.

doi:10.2113/gsecongeo.81.4.997

Cited by 43 publications

(48 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…1;Krishna Rao and Malleswara Rao 1965;Sinha 1982;Soman et al 1986;. They occur associated with Precambrian high-grade, granulite facies rocks with mineral assemblages corresponding to high temperature (650-850°C), high pressure conditions (8-10 kbar; Acharya and Dash 1984), and a low H 2 O activity.…”

Section: Granulite-hosted Depositsmentioning

confidence: 99%

“…Peak metamorphic temperatures might have been even higher, considering the increasing reports of UHT metamorphism in eastern India (e.g., Tadokoro et al 2007). Studies on vein graphite deposits in India are scarce and were carried out some time ago (e.g., Krishna Rao and Malleswara Rao 1965;Acharya and Dash 1984;Soman et al 1986). However, more recent studies have dealt with graphite occurrences in these granulite rocks providing further evidence on the origin of the deposits (e.g., Santosh and Wada 1993a, b;Radhika and Santosh 1996;Satish-Kumar 2005;Baiju et al 2009;Satish-Kumar et al 2011).…”

Section: Granulite-hosted Depositsmentioning

confidence: 99%

See 1 more Smart Citation

Vein graphite deposits: geological settings, origin, and economic significance

et al. 2013

View full text Add to dashboard Cite

Graphite deposits result from the metamorphism of sedimentary rocks rich in carbonaceous matter or from precipitation from carbon-bearing fluids (or melts). The latter process forms vein deposits which are structurally controlled and usually occur in granulites or igneous rocks. The origin of carbon, the mechanisms of transport, and the factors control-ling graphite deposition are discussed in relation to their geological settings. Carbon in granulite-hosted graphite veins derives from sublithospheric sources or from decarbonation reactions of carbonate-bearing lithologies, and it is transported mainly in CO 2 -rich fluids from which it can precipitate. Graphite precipitation can occur by cooling, water removal by retrograde hydration reactions, or reduction when the CO 2 -rich fluid passes through relatively low-fO 2 rocks. In igneous settings, carbon is derived from assimilation of crustal mate-rials rich in organic matter, which causes immiscibility and the formation of carbon-rich fluids or melts. Carbon in these igneous-hosted deposits is transported as CO 2 and/or CH 4 and eventually precipitates as graphite by cooling and/or by hydration reactions affecting the host rock. Independently of the geological setting, vein graphite is characterized by its high purity and crystallinity, which are required for applica-tions in advanced technologies. In addition, recent discovery of highly crystalline graphite precipitation from carbon-bearing fluids at moderate temperatures in vein deposits might provide an alternative method for the manufacture of synthetic graphite suitable for these new applications.

show abstract

Section: Granulite-hosted Depositsmentioning

confidence: 99%

Section: Granulite-hosted Depositsmentioning

confidence: 99%

Vein graphite deposits: geological settings, origin, and economic significance

et al. 2013

View full text Add to dashboard Cite

show abstract

“…Along the north of the estuary, palaeostrandline deposits comprising of beach ridges (width 50 m -180 m; height 0.5 m -1.0 m) and swales (width 50 m -200 m) orienting in two different sets indicates marine transgression-regression (Figure 1). The surface manifestations in the form of laterite escarpments (Padappakkara area) and oxbow lakes along the eastern fringes of the estuary are suggestive of the existence of uplifted, prograded coastal margin followed by subsiding interiors marked by backwater channels [17].…”

Section: Depositional History Of Coastal Plain Sediments Southern Kementioning

confidence: 99%

Depositional History of Coastal Plain Sediments, Southern Kerala, South West India

Ti¹,

Tn²,

Nagendra³

2016

J Earth Sci Clim Change

View full text Add to dashboard Cite

“…Hydrogeomorphological investigations comprise the demarcation and mapping of various landforms, drainage characteristics and structural features that could have a direct control on the occurrence and flow of groundwater 27,28 . Integration of base maps viz.…”

Section: Identification Of Gpzmentioning

confidence: 99%

Identification of Groundwater Potential Zones in Khatav Tahsil using Geospatial Techniques

Shinde¹,

Lingade²,

Aher³

2015

IJAIS

View full text Add to dashboard Cite

The geospatial techniques like GIS, RS, cartography, spatial statistics etc. are used to well-organized planning of groundwater resources. In this study, base maps were prepared using digital image processing of RS data, digitization of existing maps in GIS for identification of Groundwater Potential Zones (GPZ). Four thematic layers, viz., geomorphology, drainage density, slope and lineaments were considered for identification of GPZ in the Khatav tahsil study area, Satara distract, Maharashtra. Administrative boundaries of sub circle belong to study area were superimposed over prepared thematic layers to know the circle wise outcome. Spatial data of thematic layers were assigned by ranks according to circle wise weights to their relative importance in groundwater occurrence. Final relative weight of four parameters (7-20) were used for identification of GPZ, like (1) high potential groundwater zone (< 11), (2) moderate potential groundwater zone (11 -18) and (3) low potential groundwater zone (> 18). Obtained results were also confirmed from dug well survey in the study area. The Vaduj and Katar Khatav circles ( 33.18 %) is falling in high potential groundwater zone and Pusegaon and Khatav circle (32.41 %) is belong with low potential groundwater zone.

show abstract

Geology, genetic types, and origin of graphite in South Kerala, India

Cited by 43 publications

References 0 publications

Vein graphite deposits: geological settings, origin, and economic significance

Vein graphite deposits: geological settings, origin, and economic significance

Depositional History of Coastal Plain Sediments, Southern Kerala, South West India

Identification of Groundwater Potential Zones in Khatav Tahsil using Geospatial Techniques

Contact Info

Product

Resources

About