TMMOBABSTRACT: A volcanosedimentary sequence around Afşin-EIbistan, which consiste of (rock stratigraphie units including) spîMMc basait, basaltic andésite, andésite, aglomerate, tuf fite (dacite-rhyodaciteurhyolite), alkalime rhyolite (alkalin© liparite) and deep marine pelagic sediments (radiolarite, chert, limesfom© ani tor« biditic sandstone) overlying the Gökscm metaophiolite. These volcanosedimentary units which aï© presented as the Elbistan mslnıatic islmnâ-arc sequemc©,, exMMte trace» of regional, contact and cUslocafcioa (retrograde metamorphism) mtainorphism. This sequence lias been interprettei as the product of an ensiaıatic isîamd-arc eropteâ under deep marine conditions over the oceaa crust during Upper Tri assicJurassic ag© ocean crust (Göhsun metaophiolite) Neocomian (Valanginian) times.
ABSTRACT: Geological studies on, the Neogene and `Quaternary deposits in the Şuhut-Çay area Yalva$- Geletndort area and Saltandîağ; area situated to the nortlbof of tii© İsparta angle indicate that the Neotectonic regto© is compressioııal. The Neogene deposits in this region are terrestrial, iluvfatile and lacustrine^ and overlie üneonfornıably the pre-NctDgene rocks.. Although Ia.tear.al and `vertical transitions are common in, these, deposits. Urn sequence is from to top: conglomerate, marlylimestone to the Şuhut-Çay area, conglomarafe- saııdsloııesiltetoııe ,iBarI-iîiariyllıııest`Oiı.e-,liııı.esıtone in the aYIvaç-Gelendost -area and limestone-conglomerate in th.© Sıdtan-dağ area. The tectonic structures in the Neogene depositis are iuïds and. reverse faults wMch ftrwally trend N-S, and soin.©, normal faults which trend1 E-W, The latters are observed in a small part to the Şnhut-Çay area. The Neogene deposits near1 the contacts with underlying basement are «more deformed and hav© greater dips than, the roles- far from the con tact. All these data indicate that since the Upper-Miocene this region is affected: by a compression. There is n»t any evidence for a large scale tension»! reglmg. It Is assumed thai the structure» developed under this conmressional regime cans© the; closing of the Xsparta_&ngle which Itself was a resistance to the westward movement of the Anatolian plato in `the neotoctonie period.,
ABSTRACT: Study area cavers the total Âfedaë and also partially Ala$am massives. There are four different; rock types in tin© region, namely; metamorpMcs, various granits, volcanucs and volcano-sediment Neogene foimaAtans, `The irotanftorphios originated by the metemurpMsm of the phylHtic charaeteiizei series, such silicates and limestones, Lower section of the metamorplılc series which is ealled to to merozonal has a p0lym«temorpW.c proper-` ties, TMs section also shows sow» Uthologie amâ pétrographie différencies with respect to the monometaniorpMc and epteonal level* In the ©plzomal upper series, the g^reensMst» has an cyclic stratifications with calcstist and metBmorphic limestones. Relating to the oiigines, there comies out an interesömg and a special conditions, M tiiese oyles ar© stadîaed geologically, petarograplıicaîy and g:eo hemically. Pefcrog^apMc and clemical properties indicate that tlie greeesMsts lave ortho (or magmaÄc) origin©, In ottier words, it is t ie product of the metamorphlsms of the sediments contetotag a«ific ani basio la¥as which has stünated thicloıess of 4#0 to 600 meters
ABSTRACT: Mıe lice-Kıılp area lies on the southern, whilst the Çökekyazı-Gökay district is situated dose to the norttam margin d the Bitlis massif. In both districts, there are lithologioal units pertaînîngf to the rock groups of the Bitlis massif called lower ami nppe associations. Among1 these units metequartelte marble, micascMsfc, gneiss and amphibolites are the most {widespread. The gneisses and ampbibolites are only emeoiimierecl in the lower, whilst the others are observed in the bith associations. The metaquartzite, marble and oıica-scMsts have been derived from sedimentary parents; certain gneisses tana ampMbolites are the derivatives of sedimeııtary, whereas the others come from igneous origin The gneisses, some of which, exiMt a- well developed scMstosity are locally found iıı alternation with the metaqpartzltes ani merbles while sonne others pass laterally in to the mica-schists» This situation indicates that some of the gneisses are of sedimentary (pelitic rocks) origin. The others of the gneisses, on the other hand, show a relatively massive structure and are observed as bodies cutting locally the other metamorpMes. This implies that these gneisses may be of igneous ( acidic igneous) origin In places, the amphibolïtes are seen In alternation with quartzmieeschists and are locally encountered as massive bodies cutting the mleanschists. These evidences show that some of the aimphifeolites have been resulted from the metamorphism of sedimentary rocks» that is Impure limestones or marls, and the others have been derived from the metamorphism of basic Igneous roeks. This interpretation concerning with the origin of the amphibolites< is also- supported by Bb/Sr ratio values obtained `via XKF analyses, and microsooplo studies.