1995
DOI: 10.1346/ccmn.1995.0430607
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Sepiolite-Palygorskite from the Hekimhan Region (Turkey)

Abstract: Abstract--Upper 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 e… Show more

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Cited by 54 publications
(14 citation statements)
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References 38 publications
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“…However, all the samples have negative Eu anomalies, similar to those found by Torres‐Ruiz et al . (1994 ) in Spanish sepiolite deposits of Tertiary basins and by Yalçin & Bozkaya (1995) in Upper Cretaceous–Lower Miocene sepiolite sediments from Turkey. In the silty mudstone samples, the small proportion of detrital feldspars could explain the negative Eu anomalies, as Eu is concentrated in feldspars ( Taylor & McLennan, 1985).…”
Section: Geochemistrymentioning
confidence: 76%
“…However, all the samples have negative Eu anomalies, similar to those found by Torres‐Ruiz et al . (1994 ) in Spanish sepiolite deposits of Tertiary basins and by Yalçin & Bozkaya (1995) in Upper Cretaceous–Lower Miocene sepiolite sediments from Turkey. In the silty mudstone samples, the small proportion of detrital feldspars could explain the negative Eu anomalies, as Eu is concentrated in feldspars ( Taylor & McLennan, 1985).…”
Section: Geochemistrymentioning
confidence: 76%
“…Development of vein-type sepiolite has been described in carbonate, basic and ultrabasic rocks (Imai and Otsuka 1984;Velde 1985;YeniyoI1986). Furthermore, sepiolite has been determined to form authigenically in basic water conditions (Garrels and Mackenzie 1967;Galan and Castillo 1984), diagenetically from dolomite and magnesite (Hay et al 1986;Yal~in and Bozkaya 1995;Ece 1998) and in pedogenic environments, such as calcretes and caliches (Me Grath 1984;Karakas and Kadir 1998). The objective of the present paper is to examines the mineralogical composition and associations of the Hirsizdere magnesite deposit and to determine the genetical relationship of sepiolite with magnesite host rock.…”
Section: Introductionmentioning
confidence: 97%
“…When the chronological and geographical distribution of palygorskite and sepiolite is taken into consideration, it appears that their concentrations increase in the Upper Cretaceous and especially in Tertiary age sediments, in the zones between 30À40º N latitudes on both hemispheres (Yalcin & Bozkaya, 1995). Iran (25À40º N) is located in the mid-latitude belt of arid and semi-arid regions of the Earth (Banaei et al, 2005).…”
mentioning
confidence: 99%