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dc.contributor.authorYalcin, H
dc.contributor.authorBozkaya, O
dc.date.accessioned2019-07-27T12:10:23Z
dc.date.accessioned2019-07-28T10:38:48Z
dc.date.available2019-07-27T12:10:23Z
dc.date.available2019-07-28T10:38:48Z
dc.date.issued1995
dc.identifier.issn0009-8604
dc.identifier.issn1552-8367
dc.identifier.urihttps://dx.doi.org/10.1346/CCMN.1995.0430607
dc.identifier.urihttps://hdl.handle.net/20.500.12418/11905
dc.descriptionWOS: A1995UE43300007en_US
dc.description.abstractUpper Cretaceous-Tertiary marine clayey-calcareous rocks of the Hekimhan basin contain fibrous clay minerals in significant amounts. Ophiolitic rocks in the provenance area have contributed the elements to form the clay minerals. XRD, SEM, major, trace and REE analyses were applied to samples taken from several stratigraphic sections. Diagenetic minerals such as smectite, dolomite, calcite, gypsum, celestite and quartz/chalcedony are associated with sepiolite-palygorskite group days. Trace and rare earth elements (REE) are more abundant in palygorskite than sepiolite. REE abundances in the sepiolite-palygorskite are characterized by negative Eu and positive Nd anomalies when normalized with respect to chondrite and shale. Sepiolites with sharp XRD peaks are formed by diagenetic replacement of dolomite and diagenetic transformation of palygorskite, or by direct crystallization from solution. The average structural formula of the sepiolite is: (Mg7.15Al0.13Fe0.31Cr0.06Ni0.04)(Si11.98Al0.02)O-30(OH)(4)(OH2)(4)Ca0.03Na0.02K0.02.8H(2)O Palygorskite appears to be authigenic by direct precipitation from solution. It exists in both monoclinic and orthorhombic forms with the mean structural formula given below: (Mg2.22Al1.00Ti0.04Fe0.77Cr0.01Ni0.02)(Si7.68Al0.32)O-20(OH)(2)(OH2)(4)Ca0.07Na0.05K0.10.4H(2)Oen_US
dc.language.isoengen_US
dc.publisherCLAY MINERALS SOCen_US
dc.relation.isversionof10.1346/CCMN.1995.0430607en_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectgeochemistryen_US
dc.subjectHekimhanen_US
dc.subjectmineralogyen_US
dc.subjectpalygorskiteen_US
dc.subjectrare earth elementsen_US
dc.subjectSEMen_US
dc.subjectsepioliteen_US
dc.subjectsmectiteen_US
dc.subjectXRDen_US
dc.titleSepiolite-palygorskite from the Hekimhan region (Turkey)en_US
dc.typearticleen_US
dc.relation.journalCLAYS AND CLAY MINERALSen_US
dc.contributor.authorIDBozkaya, Omer -- 0000-0002-8474-8600en_US
dc.identifier.volume43en_US
dc.identifier.issue6en_US
dc.identifier.endpage717en_US
dc.identifier.startpage705en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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