 | | Journal (article/letter/editorial) | | has been an abundance of mineral specimens from India appearing at mineral shows. Unfortunately, the locality...location was usually given as “Poona (also Poonah), India,” which is far from precise. Poona (now Pune) is...famous mineral localities belong to this area: Aurangabad, Mumbai, Jalgaon, and Nasik, to name a few. ...largest crystal about 3 mm, from Wagholi quarry, Maharashtra. Georges Claeys specimen, photo courtesy Eddy...(left). Map showing the Deccan Trap area of Maharashtra, India, prepared by Rik Dillen. Figure 4 (below) |  | Parthasarathy, G., Pandey, O.P., Sreedhar, B., Sharma, Mukund, Tripathi, Priyanka, Vedanti, Nimisha (2019) First observation of microspherule from the infratrappean Gondwana sediments below Killari region of Deccan LIP, Maharashtra (India) and possible implications. Geoscience Frontiers, 10 (6) 2281-2285 doi:10.1016/j.gsf.2019.04.005 | Journal (article/letter/editorial) | | infratrappean Gondwana sediments below Killari region of Deccan LIP, Maharashtra (India) and possible implications...Geophysical Research Institute, Hyderabad, 500007, India National Institute of Advance Studies, School of...Bengaluru, 560012, India c CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India d Birbal Sahni...226007, India e Presently at Banaras Hindu University, Varanasi, India f Geological Survey of India, Bandalaguda...Bandalaguda, Hyderabad, 50068, India b a r t i c l e i n f o a b s t r a c t Article history: Received |  | | Journal (article/letter/editorial) | | chalcedony in Deccan flood basalts, Killari, Maharashtra, India GOPALAKRISHNARAO PARTHASARATHY1, AJIT...Hyderabad 500 007, India Institute of Chemical Technology, Hyderabad 500 007, India Abstract: Chalcedony...has shown the occurrence of length-slow fibrous quartz in association with length-fast fibrous chalcedony...through the Deccan basalts at Killari (18°03’N and 76°33’E) in Maharashtra, India. X-ray powder-diffraction...nm; c = 1.0715(2) nm; β = 90.07° in addition to α-quartz. Thermogravimetry indicates moganite contents up |  | Parthasarathy, G., Choudary, B.M., Sreedhar, B., Kunwar, A.C., Srinivasan, R. (2003) Ferrous saponite from the Deccan Trap, India, and its application in adsorption and reduction of hexavalent chromium. American Mineralogist, 88 (11) 1983-1988 doi:10.2138/am-2003-11-1242 | Journal (article/letter/editorial) | | 1983–1988, 2003 Ferrous saponite from the Deccan Trap, India, and its application in adsorption and reduction...Hyderabad-500 007, India Indian Institute of Chemical Technology, Hyderabad-500 007, India ABSTRACT A green-colored...fractures in the Deccan flood basalts at Killari, Maharashtra, India has been identified as iron-rich saponite...95)(Si6.45Al1.55)O20(OH)4. The XRD data of the Killari sample with d (001) = 1.70 nm and b0 = 0.9275(2)...secondary minerals in the Deccan flood basalts of India, we have come across a green clay mineral whose |  | | Journal (article/letter/editorial) | | main spectral differences between moganite and α-quartz occur in the wavenumber region below 650 cm–1....vibrations of moganite are almost identical to those of quartz. Additional moganite bands were recorded near 165...moganite. The results indicate that moganite and quartz have different crystal structures and symmetries...explained by mechanical mixing of the two moganite and quartz end phases. The change in moganite content leads...and the intergrowth of moganite with fine-grained quartz. The close correlation between band width and moganite |  | | Report (chapter) | | Deccan Volcanic Province (around Nanded, Maharashtra, India) R. D. KAPLAY1*, MD. BABAR2, SOUMYAJIT MUKHERJEE3...Sciences, S.R.T.M.University, Nanded-431606, Maharashtra, India 2 Department of Geology, Dnyanopasak College...College, Parbhani-431401, Maharashtra, India 3 Department of Earth Sciences, Indian Institute of Technology...Technology, Bombay, Powai, Mumbai-400076, Maharashtra, India *Correspondence: rdkaplay23@rediffmail.com...the microseismically active Nanded region, Maharashtra, India. We used the geomorphic indices of active |  | | Journal (article/letter/editorial) | | continental regions of Australia, North America and India show that these faults typically have a long-term...these earthquakes was the Killari earthquake (29 September 1993) in central India. • , the location of prehistoric... Earthquake magnitude 1 2 3 4 5 6 7 8 Cutch, India (1) Accra, Ghana (2) Central Sudan, Africa (3) Meckering...January 1988 Ungava, Quebec, Canada (9) Killari (Latur), India (10) 25 December 1989 29 September 1993...as well as the 1989 Ungava, Canada and 1993 Killari, India events, reveal the limitations of relying solely |  | | Journal (article/letter/editorial) | | calumetite from Khetri copper mine, Rajasthan, India G.N. HemaNtHa Kumar,1 G. PartHasaratHy,2 aNd J....Government Polytechnic for Women, Nellore-524 003, India National Geophysical Research Institute, Council...Hyderabad-500 007, India 3 Department of Physics, Sri Venkateswara University, Tirupati-517 502, India abstract...the Khetri copper complex, Jhunjhunu district, Rajasthan, India. The sample was characterized by X-ray...occurring calumetite from a copper mine, Rajasthan, India, is reported with the motivation of understanding |  | Randive, Kirtikumar, Chaudhary, Sushma, Dandekar, Sneha, Deshmukh, Kavita, Peshve, Dilip, Dora, M L, Belyatski, Boris (2019) Characterisation and genesis of the chalcedony occurring within the Deccan lava flows of the LIT hill, Nagpur, India. Journal of Earth System Science, 128 (7). doi:10.1007/s12040-019-1208-4 | Journal (article/letter/editorial) | | within the Deccan lava flows of the LIT hill, Nagpur, India KIRTIKUMAR RANDIVE1,*, SUSHMA CHAUDHARY1, SNEHA...440 001, India. 2 Metallurgical and Materials Engineering Department, V.N.I.T., Nagpur, India. 3 Geological...Geological Survey of India, Central Region, Seminary Hills, Nagpur, India. 4 Center for Isotope Research...plethora of secondary minerals, notably zeolites, quartz and calcite. These minerals occupy the vesicles...Deccan traps and wellcrystallised quartz varieties such as rosy quartz and amethyst. However, a group of |  | Hemantha Kumar, G. N., Parthasarathy, G., Chakradhar, R. P. S., Rao, J. Lakshmana, Ratnakaram, Y. C. (2010) Temperature dependence on the electron paramagnetic resonance spectra of natural jasper from Taroko Gorge (Taiwan) Physics and Chemistry of Minerals, 37 (4) 201-208 doi:10.1007/s00269-009-0324-0 | Journal (article/letter/editorial) | | Sri Venkateswara University, Tirupati 517 502, India e-mail: jlrao46@yahoo.co.in G. N. Hemantha Kumar...Institute (CSIR), Uppal Road, Hyderabad 500606, India e-mail: gpsarathy@ngri.res.in R. P. S. Chakradhar...Ceramic Research Institute (CSIR), Kolkata 700 032, India EPR spectra of jasper heat-treated at 673 K have...opaque variety of cryptocrystalline quartz, in which the quartz (SiO2) is mixed with impurities like...hematite. Jasper is composed of microcrystalline quartz with grain size of about 15–20 l. The red color |  | | Journal (article/letter/editorial) | | polymorph moganite is commonly intergrown with quartz in microcrystalline silica varieties that are less...this observation: (1) the intergrowth of nanoscale quartz lamellae within moganite may exert a strain that...discovery of its abundance in most microcrystalline “quartz” varieties (Heaney and Post 1992), have established...precipitate a significant fraction of moganite along with quartz within microcrystalline silcretes and playa sediments...cavities of the Deccan flood basalts in Maharastra, India typically contain 70 ± 10 wt% moganite. These nodules |  | | Journal (issue) | | Information Division, Geological Survey of India, 29 Jawaharlal Nehru Road. Calcutta 700 016, India. Subscription...Oeolb.gicafS �rvey . of India, 29, Jawaharlal Nahru Road , Calcutta 700 0 1 6, India. \ INDIAN MINERALS...Service (ACS) Recently, the Geolo-gical Survey of India has reached yet another milestone. Spawned in 1851...GSI was born, they departed from the shores of India leaving a sovereign nation not fully ready to fend...on different aspects of Earth science studies in India throwing insi�hts into the milestones and future |  | | Journal (article/letter/editorial) | | TX 77058, USA Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM...NM 87545, USA; hxu@lanl.gov Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN...respect to quartz in hypersaline water. The ADPs of moganite show a similar trend as those of quartz determined...2021 Published: 7 March 2021 Keywords: moganite; quartz; anisotropic atomic displacement parameter; synchrotron...fine-grained quartz [1,2,8–10]. Moganite is a metastable phase that eventually transforms to quartz or dissolves |  | | Journal (article/letter/editorial) | | similar to those of agate implying a moganite to a-quartz transformation can be thermally induced. CO2 was...about their possible role in this moganite to a-quartz transformation. Moganite is a polymorph of silica...silica found world-wide in most microcrystalline a-quartz varieties (Heaney & Post, 1992). The mineral crystallises...alternate stacking of layers of left and right-handed quartz on the unit-cell scale (Miehe & Graetsch, 1992)...connections in the formation of microcrystalline a-quartz (Heaney, 1995; Moxon & Rı́os, 2004). Transformation |  | | Journal (article/letter/editorial) | | Introduction CHALCEDONY is a variety of microcrystalline a-quartz that generally displays a fibrous texture under...mixture of two silica polymorphs: moganite and a-quartz. The T. MOXON ET AL. crystal structure of moganite...alternate stacking of layers of left- and righthanded quartz on the unit-cell scale (Miehe and Graetsch, 1992)...the first 400 Ma while the crystallite size of a-quartz increases (Moxon and Rı́os, 2004). A good correlation...one sample also contained milky macrocrystalline quartz. These two rock sections show that agate or brown |  | Parnell, J., Watt, G., Chen, H., Wycherley, H., Boyce, A., Elmore, D., Blumstein, R., Engel, M., Green, P. (2004) Kaolin polytype evidence for a hot-fluid pulse along Caledonian thrusts during rifting of the European Margin. Mineralogical Magazine, 68 (3) 419-432 doi:10.1180/0026461046830195 | Journal (article/letter/editorial) | | are also coated with red Fe oxide, calcite and quartz which petrographic relationships indicate are coeval...relationships indicate coeval precipitation of kaolin and quartz in some J. PARNELL ET AL. fractures, which is...fractured Torridonian sandstone, mm-thick vein quartz coeval with kaolin contains primary fluid inclusions...homogenization temperatures between 70 and 80ºC. Although quartz precipitation is slow at these temperatures (Walderhaug...range 50 80ºC, inferred from the fluid inclusions in quartz at Bealach na Ba. This trend overlaps the meteoric |  | | Journal (article/letter/editorial) | | temperature and CO2 records will be presented. Division of Geological and Planetary Sciences, California...(*correspondence: palot@ipgp.jussieu.fr) 2 Mineralogy Division, Mintek, Private Bag X3015, Randburg 2125, South...uplifted lowercrust below Seismogenic region Latur, India OM PRAKASH PANDEY AND G. PARTHASARATHY National...Geophysical Research Institute, Hyderabad –500007, India (om_pandey@rediffmail.com, gpsarathy@ngri.res.in)...occurrence of Latur earthquake, several boreholes were drilled in the earthquake affected region of Latur. One |  | | Journal (article/letter/editorial) | | Palaeocene) Age for Deccan-type Feeder Dykes, Goa, India M. WIDDOWSON1∗, M. S. PRINGLE2 AND O. A. FERNANDEZ3...0QU, UK 3 DHEMPE COLLEGE, PANJIM, GOA, 403 001, INDIA RECEIVED NOVEMBER 1, 1999; REVISED TYPESCRIPT ACCEPTED...that forms the pre-Deccan basement of peninsular India. These dykes crop out >50–80 km beyond the southern...Deccantype magmatism continued to affect western India for at least 1–2 my after the K–T boundary (65·0...Basic dyke swarms are common in western peninsular India and their existence has long been documented [see |  | | Journal (article/letter/editorial) | | South China. Orebodies are predominantly banded quartz veins, which are strictly controlled by bedding...inclusions hosted in quartz, scheelite, and stibnite from quartz–scheelite and quartz–sulfide–gold veins...minerals (scheelite and stibnite) and their coexisting quartz largely share similar characteristics in terms...that these ore minerals are always intergrown with quartz. Microthermometric and laser Raman data indicate...on the fluid inclusion features in scheelite and quartz-I. However, Au and Sb ore deposition probably resulted |  | | Journal (article/letter/editorial) | | and mixtures of moganite with microcrystalline quartz. We find that for relatively high (>50%) abundances...that moganite is broadly spectrally similar to quartz with major reflectance maxima located between ∼1030...planetary science, where constituent phases of quartz-rich sedimentary rocks can be identified using...spectroscopy. Keywords: Moganite, chert, microcrystalline quartz, silica, Raman spectroscopy, infrared spectroscopy...microcrystalline quartz samples, suggesting moganite is present in many terrestrial microcrystalline quartz deposits |  | | Journal (article/letter/editorial) | | opal-A, opal-CT, chalcedony, and macrocrystalline quartz. Some specimens are composed of only a single form...chalcedony; however, chalcedony and macrocrystalline quartz are common as minor constituents in opal wood....limitation occurs with XRD patterns that reveal quartz peaks; these could come from either cryptocrystalline...cryptocrystalline chalcedony, microcrystalline quartz, or a combination of the two silica polymorphs. Identification...been considered to consist of microcrystalline quartz; however, optical microscopy reveals that chalcedony |  | | Journal (article/letter/editorial) | | compositions of carbonates from the Killari borehole, Maharashtra, India O.P. PANDEY, G. PARTHASARATHY S...Geophysical Research Institute (CSIR), Hyderabad, India (om_pandey@rediffmail.com) The Deccan Volcanic Province...for the presence of mantle metasomatism in the Killari region of the Deccan Trap. [1] Pandey, O.P. et...(dpapineau@ciw.edu) 2 Materials Science and Technology Division, Naval Research Laboratory, Washington DC 20375...along fractures. Albite, potassium feldspar, and quartz only occur as polyphase inclusions in garnet and |  | | Report (issue) | | Geophysical Features from Precambrian Terrains of India: A collection of papers. No. 36 : 1996, (AMSE),...Geological Survey of . India. No. 37: 1996, (N.R.), pp. 1-282, Price Rs. 265.00 or $95.40 Killari Earth Quake 30...Price Rs. 260:00 or$94.00 Geothermal Energy in India. No. 46: 1997, (CR), pp. 1-125, Price Rs. 125.00...Golden Jubilee Seminar on Exploratiop geophysics in India. No. 56 : 2001, pp. 1-240, Price Rs. 195.00 or$11...STONES cqI'«114 �a�tIf1Cf) �� Geological Survey of India fq�lSI SlCf)I�11 '6'0 58 Special Publication No |  | 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...Geologist and Sari S, Senior Geologist Publication Division, SR, Hyderabad Under the Supervision of Madhumita...Madhumita Sengupta Ghosh, Director, Publication Division, GSI, SR, Hyderabad Overall Supervision Shri Janardan...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 |  | | Report (issue) | | Arizona Tucson AZ 85721 John Adams Geophysics Division Geological Survey of Canada, 1 Observatory Crescent...25046 MS 966 Denver CO 80225-0046 William Bryant Division of Mines and Geology State of California 801 K...Middlefield Road MS 977 MenloPark CA 94025 James Dolan Division of Geological and Planetary Science California...Minesota Minneapolis MN 55455 Clark Fenton Geophysics Division Geological Survey of Canada 1 Observatory Crescent...Columbia SC 29208 Jerome Treiman Dept of Conservation Division of Mines & Geology 107 South Broadway, Rm 1065 |
|
