 | | Journal (article/letter/editorial) | | (Ed.), The Indian Precambrian, Scientific Publ. (India), Jodhpur, pp. 376-408. Tankard, A.J., Jakson, M... Deformation History of the Kunavaram Complex, Eastern Ghats Belt, India: Implications for Alkaline Magmatism...12,2004; accepted July 26,2004) Abstract The Kunavaram alkaline complex is a NE-SW trending elongate...rocks are plastically deformed, while hornblende-K-feldspar assemblages of the complex are retrogressed to...words: Eastern Ghats Belt, alkaline magmatism, Kunavaram complex, Sileru Shear Zone, deformation history |  | | Journal (article/letter/editorial) | | Geology Departmznt, Osmania Uniuerrtty, Hyderabad, India Abshact Petrographic observations on nepheline...nepheline syenites from the Eastern Ghat province of India indicate that alkali-exchange reactions wherein potassium...ions along temperature and/or pressure 'gradients, K moving down (and Na up) any temperature gradients...the Eastern Ghat province of India between Vinayakapuram and Kunavaram (81o5',-81"l7',3u',F--r7o 2o'...phenomenon in the present petrogaphic studies. Feldspar-Nepheline Association Nepheline in the Eastern |  | | Journal (issue) | | OF INDIA Editorial Advisory Board (2003-2004) P. C. S�ASTAVA S. K. ACHARYYA D. K. BHATI D. K. PAUL...BANERJEE S. K. RAY M. S. RAO MANGLA PRASAD T. M. MAHADEVAN J. R. KAYAL ANAND MOHAN M. K. MUKHOPADHYAY...MUkherjee, L. K. Das, D. K. Das, J. N. Ray and C. Chakravarti Assistance in Publication : M. K. Toppo and...between the two alkal i components (viz. Na 20 and K'} O) in course of magmatic evolution needs to be critically...presentation of i nterrelation between Na 20 and K 2 0 based on raw analytical data i n weight percent |  | | Book (volume) | | 379-4634) India Affiliated East-West Press PVT Ltd G-1/16 Ansari Road New Delhi 110 002 India (Orders:...quite complex chemical systems. In geochronology, the K—Ar and “°Ar—*°Ar methods have been very widely applied...are linked back to back by larger cations (Ca, Na, K, etc.) in the sites M4 and in some cases by an additional...specimens. Whittaker pointed out that the (Ca,Na,K) ions are too large to enter M4 in anthophyllite,...1969; Hawthorne & Grundy 1978) it seems likely that K atoms tend to order at A(m) and Na at A(2) sites, |
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