 | | Journal (article/letter/editorial) | | Fluorine-rich clinohumite from Ambasamudram marbles, Southern India: mineralogical and preliminary FTIR...in the marbles of granulite grade at Ambasamudram, southern India. Detailed mineralogical and mineral...clinohumite. The high fluorine content of the Ambasamudram clinohumites possibly resulted from the isochemical...KEYWOROS: fluorine, clinohumite, mineralogy, FTIR, India, humite. Introduction THE humite-group consists...consists of four minerals, norbergite, chondrodite, humite and clinohumite. The group is defined by the general |  | | Journal (article/letter/editorial) | | granulite facies humite-marbles from Ambasamudram, southern India. M . S A T I S H - K U M A R , 1 H....horizon within a supracrustal sequence at Ambasamudram, southern India, was studied using petrological and...to retrograde aqueous ÂŻuid in®ltration, the Ambasamudram humite-marbles record a prograde-to-peak metamorphic...humite-marbles; ÂŻuid in®ltration; isotopic zonation; southern India. INTRO DUC TIO N Fluid ÂŻow in metamorphic rocks...East Antarctica ± Piazolo & Markl, 1999; Southern India ± Satish-Kumar & Niimi, 1998; Sri Lanka ± Hoffbauer |  | | Journal (article/letter/editorial) | | Belt, India A.P. Pradeepkumar Dept. of Geology, University of Kerala, Trivandrum 695 581, India Present...address: Focal Image (India) Pvf. Ltd., St Joseph’s Press Bldg., Trivandrum 695 014, India Email: pradeepariver-va1ley...Satish-Kumar et al., 1999). The area around Ambasamudram, through which the ASZ passes, is characterised...presence of a very unique humite - clinohumite - chondrodite - norbergite spinel - calcite - dolomite marble... forsterite, diopside, clinohumite, humite, chondrodite, norbergite, edenite, pargasite, sphene, rutile |  | Janardhan, A.S., Sriramguru, K., Basava, Sharana, Shankara, M.A. (2001) Geikielite-Mg.Al.Spinel -Titanoclinohumite Association from a Marble Quarry near Rajapalaiyam Area, Part of the 550 Ma Old Southern Granulite Terrain, Southern India. Gondwana Research, 4 (3) 359-366 doi:10.1016/s1342-937x(05)70335-x | Journal (article/letter/editorial) | | 550 Ma Old Southern Granulite Terrain, Southern India A.S. Janardhan, K. Sriramguru, Sharana Basava and...University of Mysore, Manasagangotri, Mysore - 570 006, India (Maquscript received ] m e 24,2000; accepted September...Chu-Fo-Mg.Al Spl assemblage reported from the Ambasamudram area by Pradeepkumar and Krishnanath (1996)...shows the RajapaIaiyam (area of present study), Ambasamudram localities along with sapphirine bearing localities...Cardamom, AMBVarushanad and Kodaikanal Hill ranges. Ambasamudram; AND-Andipatti; KBM-Kambam; KODSapphirine bearing |  | | Journal (article/letter/editorial) | | Virginia, Charlottesville] at 11:53 03 August 2012 Chondrodite TILLY FOSTER MINE, BREWSTER AREA PUTNAM COUNTY...famous Dekalb locality). However, one mineral, chondrodite, occurred in world-class specimens from a New...now only of historical significance. Still, chondrodite specimens from the Tilly Foster iron mine, Putnam...of the species. Consequently, an outstanding chondrodite has been nominated as the Connoisseur’s Choice...specimen for this, the New York State issue. Chondrodite is a typically unspectacular mineral that varies |  | | Journal (article/letter/editorial) | | Metacarbonates from the Kerala Khondalite Belt, Southern India M. Satish-Kumarl, H. Wadal and M. Santosh2 Department...metasupracrustal granulite facies terrain in southern India comprising garnet-biotite gneiss, garnet-sillimanite...localities show contrasting evolutionary trends. The Ambasamudram marbles exhibit carbon and oxygen isotope ratios...localities in the Kerala Khondalite Belt, southern India. We also discuss the contrasting fluid evolution... CARBON AND OXYGEN ISOTOPES IN METACARBONATES, S. INDIA a 379 880 700 v g 840 fn c E I- 800 600 |  | | Journal (article/letter/editorial) | | humite marbles of Ambasamudram, Tamil Nadu, India, Ph.D. thesis, University of Kerala, India, p.320. Satish-Kumar...tion from the Kerala Khondalite Belt, southern India : implicationsfor pressure - temperature - fluid...fields of clinohumite- OH [MggSi,0,6(0H),], chondrodite-OH [Mg,Si,O,(OH),] and phase A (Mg,Si,O,(OH)...Rajesh, H.M. and Santosh, M. (1999) Juxtaposition of India and Madagascar. J. Gond. Res., v. 2, pp. 449-462...Akkulam, Thuruvikkal P.O., Trivandrum 695 031, India Department of Geology, Peradeniya University, Kandy |  | | Report (chapter) | | Proterozoic crustal evolution of southernmost India and Sri Lanka I N G O B R A U N t & L E O M. K R...Finland Abstract: The Southern Granulite Terrain of India comprises four Proterozoic domains (from north to...tectonothermalevolutionfor the lower crustal domains of southern India, Sri Lanka and the Liitzow-HolmBay of Eastern Antarctica...Alternativeviews are discussed. Most of Peninsular India and Sri Lanka exposes Precambrian crust which was...Phanerozoic times, respectively. The crustal evolution of India during these periods has mainly affected two high-grade |  | | Journal (article/letter/editorial) | | calc-silicate–charnockite associations from southern Kerala, India: implications for CO2 influx M. SATISH-KUMAR* &...Akkulam, Thuruvikkal Post, Trivandrum 695 031, India (Received 10 October 1996; accepted 9 September...terrain of the Kerala Khondalite Belt, southern India, provides an opportunity to evaluate the carbonic...1995). The granulite facies terrains of southern India and Sri Lanka have been the focus of many studies...instrumental in charnockite formation in southern India, the source characteristics and mechanisms of fluid |  | | Journal (article/letter/editorial) | | Refinement of hydrogen positions in natural chondrodite by powder neutron diffraction: implications for...ABSTR ACT The structure of a natural sample of chondrodite (Mg4.89Fe0.07Si2.04O8F1.54(OH)0.46) was refined...favoured. K EY WORDS : powder neutron diffraction, chondrodite, Rietveld reÂŽ nement, humite minerals. Introduction...(F,OH)2 2x O 2x where n = 1 (norbergite), 2 (chondrodite), 3 (humite) or 4 (clinohumite) (Jones et al...series are, in general, well known and that of chondrodite has been determined previously by both single-crystal |  | | Journal (article/letter/editorial) | | 51/3–4(2006) 249 Clintonite-bearing assemblages in chondrodite marbles from the contact aureole of the TøebĂè...Clintonite is a minor to accessory mineral in chondrodite marbles. They represent a rare type of metacarbonate...granites (durbachites) of the TøebĂè Pluton. Chondrodite marbles consist of dominant calcite, less abundant...which is closely associated with more abundant chondrodite (XF = 0.45–0.67), are not clear in detail, because...Cal. Mineral assemblages of clintonite-bearing chondrodite marbles are product of regional-scale contact |  | Reddy, K. Mahender, Mishra, Niharika, Simi, T. S., Rath, Sonali, Paul, Arijit, Sari, S. (2023) Special Publication Vol. 1-I (77), A Manual of the Geology of India : Precambrian Part I, Southern part of the peninsula (5th ed.) Geological Survey of India | Report (edition) | | © INDIA, GEOLOGICAL SURVEY (2023) Compiled by Sri. K. Mahender Reddy, Director (Retd.), GSI, Smt...Published by The Director General Geological Survey of India 27, Jawaharlal Nehru Road Kolkata- 700016 Price...former Directors Generals, Geological Survey of India (GSI), for reposing faith on us by entrusting this...of the publication “A Manual of the Geology of India”(vol-I Part-I), Precambrian of Southern Part of...Additional Director General & HOD Geological Survey of India, Southern Region for providing infrastructural support |  | | Journal (article/letter/editorial) | | Humite-group minerals (HGM)—clinohumite, humite, chondrodite, and norbergite—are one such set of minerals...F)2, where M is Mg, F 2, 3, 4 for norbergite, chondrodite, humite, and clinohumite, respectively. They...mixtures are shown in Table 1. (Br brucite, Chon chondrodite, Chum clinohumite, En enstatite, Fo forsterite...member HGM, i.e., 3:1 = norbergite (norb), 5:2 = chondrodite (chon), 7:3 = humite (hum), and 9:4 = clinohumite...(28.8) + fluid(aq) (20.5) Clinohumite (57.3) + chondrodite (4.8) + forsterite (18.6) + fluid(aq) (19.3) |  | TimĂłn, S. M., Moro, M. C., Cembranos, M. L., Fernández, A., Crespo, J. L. (2007) Contact metamorphism in the Los Santos W skarn (NW Spain) Mineralogy and Petrology, 90 (1) 109-140 doi:10.1007/s00710-006-0166-0 | Journal (article/letter/editorial) | | metamorphic origin. Fluorine-bearing minerals such as chondrodite, norbergite and F-rich phlogopite indicate that...chlorite. Locally, forsterite-norbergite and=or chondrodite-spinel paragenesis occurs. Diopside is absent...and spinel (Spl) in a carbonate matrix; (e) chondrodite (Chn) and norbergite (Nrb) intergrowth; (f) basal...basal section of tremolite (Tre) associated with chondrodite and calcite (Cal); (d), (e) and (f) humite-,...Selected microprobe analyses of norbergite and chondrodite from the dolomite marbles; cations for norbergite |  | | Journal (article/letter/editorial) | | rocks deposited in basins on the northern margin of India, was widely subducted during the Cenozoic [36,37]...a granulite facies humite-marbles in Ambasamudram, southern India, occurred under high X(CO2 ) conditions...high-grade granulite-facies terrains such as southern India [30,31], northeastern Greece [58,60], and central...et al. (2021) [36] reported that the CO2 flux of India–Asia collision-induced metamorphic decarbonation...in-depth analysis and discussion in future work. The India–Asia collision-induced metamorphic decarbonation |  | Dunn, Steven R., Markley, Michelle J., Kotikian, Maneh, Achenbach, Kay, Montanye, Bo, Peck, William H. (2019) Geothermometry of the western half of the Central Metasedimentary Belt, Grenville Province, Ontario, and its implications. American Mineralogist, 104 (6) 791-809 doi:10.2138/am-2019-6757 | Journal (article/letter/editorial) | | indicators of metamorphic grade are shown: Chond = chondrodite, Dol+Qtz = dolomite + quartz, Di = diopside,...Satish-Kumar and Wada 2000). L = Eastern Ghats, India (excluding outliers, Sengupta et al. 1999; Sanyal...Sanyal et al. 2009). M = Madurai block, south India (Raith et al. 1997; Satish-Kumar 2000). nate as organic...grades, marble contains diopside ± scapolite ± chondrodite, and at the highest grades olivine, or serpentine...rocks are mostly diopside grade. Scapolite and chondrodite are fairly common, and olivine (or serpentine |  | | Journal (article/letter/editorial) | | high-grade granulite facies terrains, like in southern India (Satish-Kumar, 1999), whereas garnet would be stable...et al. (2001) for impure marbles from southern India: Dol Ăľ Ksp Ăľ H2 O→Phl Ăľ Cal Ăľ CO2 Ă°2Ăž We have...(pargasite) in granulite-facies marbles from southern India by Janardhan et al. (2001). The only garnet-spinel...45–48. Ehlers, K., Hoinkes, G., 1987. Titanian chondrodite and clinohumite in marbles from the Ă–tztal crystalline...550 Ma old Southern Granulite Terrain, southern India. Gondwana Research 4/3, 359–366. Jansen, J.B.H. |  | | Journal (issue) | | Articles related to the minerals or mines of the district are welcome for publication in The Picking Table...large three-inch lazurite crystal bites from Poona, India, and the bright blue with unusually sharp faces...ruby crystals in cavansites from nearby Wagholi, India. It was also marble from Kopica, Afghanistan. nice...Clifford, a shy 9-year-old from a distant school district, had only one request: Can I find pyrite here...granulite facies humite-marbles from Ambasamudram, southern India. Journal of Metamorphic Geology 19, |  | | Report (volume) | | Proterozoic crustal evolution of southernmost India and Sri Lanka In: YOSHIDA, M., WINDLEY, B. F. &...Leicester, UK S. DASGUPTA Jadavpur University, India 2003 Published by The Geological Society London...584-2555 Fax + 1918 560-2652 E-mail bookstore@aapg.org India Affiliated East-West Press PVT Ltd G-l/16 Ansari...Ansari Road, Daryaganj, New Delhi 110 002 India Orders: Tel. +9111 327-9113 Fax+ 91 11326-0538 E-mail affiliat@nda...perspective from the Eastern Ghats Granulite Belt, India DOBMEIER, C. J. & RAITH, M. M. Crustal architecture |
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