Geochemical and geochronological data from charnockites and anorthosites from India's Kodaikanal-Palani Massif, Southern Granulite Terrain, India

Sayıt, Kaan
Sivasubramanian, P
Dubey, C. S.
The Kodaikanal–Palani Massif is an important component of India’sSouthern Granulite Terrain; understanding the tectonic history of its rocks lendsconsiderable insight into its role within South India. The massif is located southof the Palghat Cauvery Shear Zone (PCSZ). Compilations of available geochronologicand geochemical information from charnockites north and south of the PCSZshow these rocks largely differ in age, with northern samples recording Archaeancrystallization events, whereas those to the south yielding Cambro-Ordovician andNeoproterozoic ages. The Kodaikanal–Palani charnockitic rocks contain monazitegrains that fall within the Cambro-Ordovician timescale. The Oddanchatramanorthosite, located along the northern boundary of the Kodaikanal–Palani Massif,contains zircon grains that record mid-Neoproterozoic to Cambro-Ordoviciancrystallization ages. This anorthosite differs in texture and composition dependingon location, that may be the result of its multi-stage metamorphic and/or intrusionhistory. Charnockitic rocks north and south of the PCSZ also differ geochemically.For example, north of the PCSZ, these rocks become more calcic with increasingSiO2 contents, whereas those to the south become alkali-calcic.


Geological evolution of the gediz graben, sw turkey: temporal and spatial variation of the graben
Çiftçi, Bozkurt N; Bozkurt, Erdin; Department of Geological Engineering (2007)
Gediz Graben is a continental extensional basin filled with Neogene sediments. Its margins are controlled by active ~EW-trending fault systems with major system, in terms of total offset and duration of activity, located along the southern margin. The graben evolved as a half graben by the activity of the southern margin during the entire Miocene. Then, the northern margin-bounding structure initiated by PlioQuaternary to form the current configuration of the graben with an inherited asymmetry. The southern...
Wave - Induced Suspended Sediment Flux Degradation due to Emergent Vegetation
Koroglu, Aysun; Elginoz, Nilay; Oğuz, Elif; Kabdasli, M Sedat (2012-06-22)
It is well known that sediment movement is affected by aquatic vegetation under flow and wave conditions. However this impact is not fully understood yet. The aim of this study is to determine the effect of emergent vegetation on suspended sediment flux under wave conditions. In this context, an experimental study was conducted and wave orbital velocities and suspended sediment concentrations are measured through 4 m long emergent reeds under regular waves. Suspended sediment fluxes were calculated and the ...
Tectonic history of basins sited along the western section of the North Anatolian Fault System, Turkey
SARP, Gülcan; Gurboga, Sule; Toprak, Vedat; Duzgun, Sebnem (2014-01-01)
Geological and geomorphological features of basins along the western half of the North Anatolian Fault System (NAFS) are used to constrain the formation of these basins by localization of deformation and the total displacement, and to determine the timing of basin development. In this study, tectonic influence direction of the NAFS on tectonic and hydrologic basins Bolu, Yenicaga, Dortdivan, Cerkes, Ilgaz and Tosya has been investigated to deduce information about the formation stages and interaction betwee...
Uncertainty analysis of a snowmelt runoff model using Markov Chain Monte Carlo (MCMC) approach
Akyürek, Sevda Zuhal (null; 2018-04-13)
Mountainous watersheds have always remained a challenge for the modelers due to ample variations taking place in those watersheds. The key reason could be the lack of ground observations and model parameter uncertainty. Generalized Likelihood Uncertainty Estimation (GLUE) approach is used widely to account for the parameter uncertainty only. However, appraisal of other sources of uncertainty is likewise important such as, forcing data uncertainty, model structural errors etc. This study employs Markov Chain...
Palaeoenvironmental and chronological constraints on the Tuglu Formation (Cankiri Basin, Central Anatolia, Turkey)
Mazzini, Ilaria; Hudackova, Natalia; Joniak, Peter; Kovacova, Marianna; Mikes, Tamas; Mulch, Andreas; Rojay, Fuat Bora; Lucifora, Stella; Esu, Daniela; Soulie-Maersche, Ingeborg (2013-01-01)
The Cankiri Basin, located in the northern part of the Central Anatolian Plateau, is a large Tertiary basin where thick Miocene to Quaternary continental sediments overlay the Cretaceous-Tertiary units. This investigation focuses on the Tuglu Formation, an Upper Miocene succession mainly composed of dark grey silty and organic rich clays. The type section of Tuglu has been sampled for an array of multidisciplinary analyses. The palaeontological proxies included ostracod, foraminifer, nannoplankton, pollen, ...
Citation Formats
K. Sayıt, P. Sivasubramanian, and C. S. Dubey, Geochemical and geochronological data from charnockites and anorthosites from India’s Kodaikanal-Palani Massif, Southern Granulite Terrain, India. 2011, p. 417.