A combined polarizing microscope, XRD, SEM, and specific gravity study of the petrified woods of volcanic origin from the Çamlıdere-Çeltikçi-Güdül fossil forest, in Ankara, Turkey

Hatipoğlu, Murat; Türk, Necdet

doi:10.1016/j.jafrearsci.2009.01.001

Cited by 18 publications

(7 citation statements)

References 35 publications

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“…The region is renowned for its mineral waters sources, coal quarries and fossil rich beds (e.g., Fig. 1B, spots 1-5) (Ozansoy, 1965;Kasaplıgil, 1977;Alpagut et al, 1996;Rückert-Ülkümen et al, 2002;Fortelius et al, 2003;Hatipoglu and Türk, 2009). Due to the richness of its natural resources, the Ministry of Environment intended to declare the Kazan-Kızılcahamam region a geopark (Kazancı et al, 2007;Kazancı, 2012).…”

Section: Geological Context Of Central Anatolia and Kazan Basinmentioning

confidence: 99%

“…These deposits also include several fossiliferous localities, the best known of which are Güvem-Keseköy with leave and vertebrate fossils and Bayındır Pelitç ik silicified wood forest (localities 4 and 5 on Fig. 1B) (Kasaplıgil, 1978;Rückert-Ülkümen et al, 2002;Atabey and Saraç , 2004;Lopez-Antoñanzas et al, 2004;Hatipoglu and Türk, 2009;Kazancı, 2012). The majority of volcanic rocks in the study area are basaltic lava and coarse pyroclastics of the Ilıcadere volcanics (Türkecan et al, 1991) that are mostly derived from volcanic centers near Kızılcahamam (Fig.…”

Section: Stratigraphy Of the ç Es¸ Tepe-kazan Areamentioning

confidence: 99%

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Çeştepe, a new early Pliocene vertebrate locality in Central Anatolia and its stratigraphic context

Şen

Delfino

Kazancı

2017

Annales de Paléontologie

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The new locality of Ç eş tepe in the Kazan Basin, 45 km NNW of Ankara, yielded the remains of three species of reptiles (cf. Lacerta sp., Anguinae indet. and Varanus sp.) and an ochotonid lagomorph, Ochotona mediterranensis Suata Alpaslan, 2009. The latter species suggests an early Pliocene age (MN14). The fossil layer is included in the Sinap Formation that delivered abundant remains of Mio-Pliocene mammals in the southern part of the basin, but in the northern part of the basin Ç eş tepe is currently the unique fossil site. The age assigned by the fauna led to revise the stratigraphy of sedimentary formations in the Ç eş tepe area, previously confusing because of the various lithostratigraphic unit names and ages given in previous work. The taxa described in this note are still poorly known in Turkey. Varanus has been previously reported from Ç alta, a locality 16.3 km SW to Ç eş tepe in the same basin, and O. mediterranensis from Igdeli in the Sivas Basin. Although represented by a few taxa, the Ç eş tepe faunule shows Eurasian affinities.

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Section: Geological Context Of Central Anatolia and Kazan Basinmentioning

confidence: 99%

Section: Stratigraphy Of the ç Es¸ Tepe-kazan Areamentioning

confidence: 99%

Çeştepe, a new early Pliocene vertebrate locality in Central Anatolia and its stratigraphic context

Şen

Delfino

Kazancı

2017

Annales de Paléontologie

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“…Various fossil forest locations were identified in Turkey, mainly in central Anatolia (Ankara-Çamlıdere-Kızılcahamam, Bolu-Seben, Tokat-Zile etc.) (Hatipoğlu and Türk, 2009;Akkemik et al, 2016;Kaydu Akbudak et al, 2017;Acarca Bayam et al, 2018;Akkemik et al, 2018;Akkemik and Acarca Bayam, 2019;Denk et al, 2019), western Anatolia (İzmir-Aliağa, Manisa-Yunusemre, Uşak-Banaz, Kütahya-Tavşanlı) (Yurtseven, 2018;Polat et al, 2019) and northwestern Anatolia (Edirne-Keşan, Tekirdağ-Malkara-Çorlu, Çanakkale-Gökçeada, İstanbul-Sarıyer-Beykoz-Beylikdüzü-Çatalca) (Aras et al, 2004;Akkemik et al, 2005;Güngör et al, 2019;Çevik Üner et al, 2020). Most of the petrified wood in Turkey is generally silicified, partially carbonated and carbonized.…”

Section: Introductionmentioning

confidence: 99%

Mineralogical and paleobotanical investigations of Oligo-Miocene petrified wood from the southwest of Thrace Basin (NW Turkey)

2021

Turkish J Earth Sci

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“…Scurfield, Segnit 1984). Two other forms of silica in petrified wood have been recorded: (1) opal C and (2) moganite (Hatipoğlu, Türk 2009). It is noteworthy that the coexistence of opal-CT and chalcedony in some silicified wood specimens from Colorado, USA conflicts with the hypothesis that chalcedonic petrified wood would result exclusively from the transformation of an opaline precursor (Mustoe 2008).…”

Section: Introductionmentioning

confidence: 99%

The fossil wood of East Cairo, Egypt: A mineralogical view

Hassan

2015

Mineralogia

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Abstract. As part of the characterization of the petrified wood of East Cairo at the New Cairo Petrified Forest, representative samples collected from the area were studied by X-ray powder diffraction (XRD) and optical microscopy. The samples, as indicated by XRD analysis, are composed of quartz ± some goethite ± minor moganite ± minor gypsum ± trace calcite. The absence of moganite in some samples has been attributed to the transformation of moganite to quartz or to leaching processes. Under the optical microscope, some of the 10 petrified-wood samples are permineralized with mainly microcrystalline quartz (chalcedony), some with a combination of chalcedony and microgranular quartz, and some with microgranular quartz. The sequence of silicification is likely to have been either opaline precursor to chalcedony and quartz, or directly to chalcedony and quartz. The crystallinity indices (C.I.) of the quartz in the samples studied, measured using a standard X-ray powder diffraction procedure, are consistent with the petrographic findings. The chalcedonic samples have the least C.I. values, and the microgranular quartz samples the highest values.

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A combined polarizing microscope, XRD, SEM, and specific gravity study of the petrified woods of volcanic origin from the Çamlıdere-Çeltikçi-Güdül fossil forest, in Ankara, Turkey

Cited by 18 publications

References 35 publications

Çeştepe, a new early Pliocene vertebrate locality in Central Anatolia and its stratigraphic context

Çeştepe, a new early Pliocene vertebrate locality in Central Anatolia and its stratigraphic context

Mineralogical and paleobotanical investigations of Oligo-Miocene petrified wood from the southwest of Thrace Basin (NW Turkey)

The fossil wood of East Cairo, Egypt: A mineralogical view

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