The mineral chemistry of illite/mica and chlorites, together with the evaluation of textural data... more The mineral chemistry of illite/mica and chlorites, together with the evaluation of textural data of low-temperature metaclastic rocks, plays an important role in determining their origin and metamorphic grade. This study aimed to investigate the chemical properties of phyllosilicates in early Paleozoic metaclastic rocks in the Eastern Tauride Belt, Türkiye. The textural (electron microscopy) and chemical (mineral chemistry analysis) analyses were performed on the samples representing different grades of metamorphism. The illites/micas and chlorites are observed as detrital (chlorite–mica stacks) and neoformation origin. Trioctahedral chlorites (chamosite) exhibit different chemistry for detrital and neoformed origin as well as the metamorphic grade. Tetrahedral Al and octahedral Fe + Mg increase, whereas octahedral Al decreases together with the increasing grade of metamorphism. The detrital chlorites have higher tetrahedral Al and Fe contents than their neoformed counterparts. Chl...
Orta (Bozkir-Konya, Isali formasyonu Gerez uyesi) ve Dogu (Kangal-Sivas, Kangal formasyonu Bakirt... more Orta (Bozkir-Konya, Isali formasyonu Gerez uyesi) ve Dogu (Kangal-Sivas, Kangal formasyonu Bakirtepe uyesi) Toroslar’da allokton Bolkardagi Birligi’ne ait Devoniyen yasli metakumtaslari; baslica kuvars (monokristalin ve polikristalin), feldispat (mikroklin ve plajiyoklaz), fillosilikat (illit, klorit, C-V, C-S ve dikit) ve kayac parcalari (fillit ve kuvarsit) icermektedir. Polikristalin kuvars, mikroklin ve fillitik kayac parcalari Bakirtepe uyesinde, plajiyoklaz ise Gerez uyesinde daha yuksek miktarda bulunmaktadir. Gerez uyesi genellikle kuvars arenit, Bakirtepe uyesi ise subarkoz bilesimli metakumtaslari ile temsil olunmaktadir. Devoniyen yasli metakumtaslari, altinda ve ustundeki ayni yasli birimlere gore litolojik (kum boyu silisiklastik kayaclarin baskinligi) ve mineralojik (daha fazla feldispat ve kuvars icermesi, 1M illitlerin ortaya cikmasi, farkli fillosilikat birliktelikleri) farkliliklara sahiptir. Metakumtaslari, yuksek SiO2, Al2O3, Fe2O3 ve K2O icerigi ile karakteristi...
Objective: To determine the rate and affecting factors of asbestos-related diseases (ARD) in the ... more Objective: To determine the rate and affecting factors of asbestos-related diseases (ARD) in the villages close to ophiolitic units in the rural of Sivas, central Anatolia in Turkey. Methods: Volunteers (age>35, >20 years resident) from villages close to ophiolitic units and from villages >20 km distant to ophiolitic units as control group were included. Chest X-rays and questionnaire for demographical data and respiratory symptoms were performed. A geological map was used to measure the distance between ophiolitic units and villages. Samples were taken from houses and soil sources and analyzed for asbestos with X-ray diffraction. Results: 2987 volunteers (1148 male, 1839 female) from 48 villages close to ophiolitic units and 157 (91 male, 66 female) volunteers from 6 villages far to ophiolitic units were included. Mean age of study and control groups were 55.2 and 57.3 respectively. 292 patients (3 malignant mesothelioma, 289 pleural plaque) with ARD were identified from villages close to ophiolitic units. No ARD was identified in control group. Factors affecting ARD risk were male sex (OR:3.1,p=0.00), advanced age (OR:1.05 for every year of age,p=0.00), residency close to ophiolitic units (for each 1 km 12% increase) and, decrease in BMI (for each 1 unit 3.6% increase) in multivariate logistic regression analysis. Serpentine was found in samples of villages close to ophiolitic units, no asbestos was found in control villages. Conclusion: ARD rate is high in residents close to ophiolitic units in rural Sivas. Factors associated with ARD development were advanced age, male sex and living close to ophiolitic units.
In this study, chlorite is used to investigate the diagenetic-metamorphic evolution and accurate ... more In this study, chlorite is used to investigate the diagenetic-metamorphic evolution and accurate geological history of the different units belonging to the Karakaya complex, Turkey. Primary and secondary chlorite minerals in the very low-grade metamorphic rocks display interference colors of blue and brown and an appearance of optical isotropy. Chlorites are present in the matrix, pores, and/or rocks units as platy/flaky and partly radial forms. X-ray diffraction (XRD) data indicate that Mg-Fe chlorites with entirely IIb polytype (trioctahedral) exhibit a variety of compositions, such as brunsvigite-diabantite-chamosite. The major element contents and structural formulas of chlorite also suggest these were derived from both felsic and metabasic source rocks. Trace and rare earth element (REE) concentrations of chlorites increase with increasing grade of metamorphism, and these geochemical changes can be related to the tectonic structures, formational mechanics, and environments pres...
... Cretaceous/Tertiary Boundary from the Tethyan Belt, Hekimhan Basin, Turkey: Mineralogical and... more ... Cretaceous/Tertiary Boundary from the Tethyan Belt, Hekimhan Basin, Turkey: Mineralogical and Geochemical Evidence1 HüsEYiN Yalcin and Ömer Bozkaya Department ... dolo-mite at the base of the Paleocene section also was emphasized in studies on the Tecer Forma-tion ...
This study was conducted with the aim of determining the effects of zeolit (klinopilit) addition ... more This study was conducted with the aim of determining the effects of zeolit (klinopilit) addition in broiler feeds on fattening performances in broiler production. Natural clinoptilolit was added in broiler rations at doses of 0 (control), 1, 3 and 5 %. A total of day-age 240 broiler chicks were used in four experimental groups with 3 replicates (20 broiler in each replicate). Live weight gains, feed consumptions, feed conversion ratios, viabilities and litter parameters were recorded for 6 weeks. Final liveweights were found as 2555, 2459, 2431 and 2530 g for the mixed-sex groups, respectively (P>0.05). Feed consumption did not differ significantly between the groups in 6 weeks (P>0.05), but there are differences between the groups from 2 weeks to 5 weeks (P 0.05). Zeolit addition did not affect negatively viabilities in each group (95.55, 100.00, 100.00 ve 100.00) (P>0.05). It was concluded that zeolit can be added in broiler rations at ratios of 1-5 % ratios.
Carpathian journal of earth and environmental sciences
We determined the variability and content of potentially toxic elements (PTEs) in soils formed on... more We determined the variability and content of potentially toxic elements (PTEs) in soils formed on volcanic parent materials erupted from Erciyes stratovolcano in the middle Anatolian region of Turkey. The PTE content of soils formed on tuffs were higher than the soils formed on lavas. All the PTE concentrations decrease with increasing soil depth except for those of Cd. Cr, Cd, and Ni increased with elevation, but Co, Cu, Mn, Pb, and Zn concentrations decreased. The high PTE concentrations in soils could be attributed to the volcanic parent materials. The greatest PTE variations in soils were determined by lithological differences and could be attributed to the types of parent material and their compositions. Site specific soil management practices must be applied to soils in the study area because of the high PTE content.
The mineral chemistry of illite/mica and chlorites, together with the evaluation of textural data... more The mineral chemistry of illite/mica and chlorites, together with the evaluation of textural data of low-temperature metaclastic rocks, plays an important role in determining their origin and metamorphic grade. This study aimed to investigate the chemical properties of phyllosilicates in early Paleozoic metaclastic rocks in the Eastern Tauride Belt, Türkiye. The textural (electron microscopy) and chemical (mineral chemistry analysis) analyses were performed on the samples representing different grades of metamorphism. The illites/micas and chlorites are observed as detrital (chlorite–mica stacks) and neoformation origin. Trioctahedral chlorites (chamosite) exhibit different chemistry for detrital and neoformed origin as well as the metamorphic grade. Tetrahedral Al and octahedral Fe + Mg increase, whereas octahedral Al decreases together with the increasing grade of metamorphism. The detrital chlorites have higher tetrahedral Al and Fe contents than their neoformed counterparts. Chl...
Orta (Bozkir-Konya, Isali formasyonu Gerez uyesi) ve Dogu (Kangal-Sivas, Kangal formasyonu Bakirt... more Orta (Bozkir-Konya, Isali formasyonu Gerez uyesi) ve Dogu (Kangal-Sivas, Kangal formasyonu Bakirtepe uyesi) Toroslar’da allokton Bolkardagi Birligi’ne ait Devoniyen yasli metakumtaslari; baslica kuvars (monokristalin ve polikristalin), feldispat (mikroklin ve plajiyoklaz), fillosilikat (illit, klorit, C-V, C-S ve dikit) ve kayac parcalari (fillit ve kuvarsit) icermektedir. Polikristalin kuvars, mikroklin ve fillitik kayac parcalari Bakirtepe uyesinde, plajiyoklaz ise Gerez uyesinde daha yuksek miktarda bulunmaktadir. Gerez uyesi genellikle kuvars arenit, Bakirtepe uyesi ise subarkoz bilesimli metakumtaslari ile temsil olunmaktadir. Devoniyen yasli metakumtaslari, altinda ve ustundeki ayni yasli birimlere gore litolojik (kum boyu silisiklastik kayaclarin baskinligi) ve mineralojik (daha fazla feldispat ve kuvars icermesi, 1M illitlerin ortaya cikmasi, farkli fillosilikat birliktelikleri) farkliliklara sahiptir. Metakumtaslari, yuksek SiO2, Al2O3, Fe2O3 ve K2O icerigi ile karakteristi...
Objective: To determine the rate and affecting factors of asbestos-related diseases (ARD) in the ... more Objective: To determine the rate and affecting factors of asbestos-related diseases (ARD) in the villages close to ophiolitic units in the rural of Sivas, central Anatolia in Turkey. Methods: Volunteers (age>35, >20 years resident) from villages close to ophiolitic units and from villages >20 km distant to ophiolitic units as control group were included. Chest X-rays and questionnaire for demographical data and respiratory symptoms were performed. A geological map was used to measure the distance between ophiolitic units and villages. Samples were taken from houses and soil sources and analyzed for asbestos with X-ray diffraction. Results: 2987 volunteers (1148 male, 1839 female) from 48 villages close to ophiolitic units and 157 (91 male, 66 female) volunteers from 6 villages far to ophiolitic units were included. Mean age of study and control groups were 55.2 and 57.3 respectively. 292 patients (3 malignant mesothelioma, 289 pleural plaque) with ARD were identified from villages close to ophiolitic units. No ARD was identified in control group. Factors affecting ARD risk were male sex (OR:3.1,p=0.00), advanced age (OR:1.05 for every year of age,p=0.00), residency close to ophiolitic units (for each 1 km 12% increase) and, decrease in BMI (for each 1 unit 3.6% increase) in multivariate logistic regression analysis. Serpentine was found in samples of villages close to ophiolitic units, no asbestos was found in control villages. Conclusion: ARD rate is high in residents close to ophiolitic units in rural Sivas. Factors associated with ARD development were advanced age, male sex and living close to ophiolitic units.
In this study, chlorite is used to investigate the diagenetic-metamorphic evolution and accurate ... more In this study, chlorite is used to investigate the diagenetic-metamorphic evolution and accurate geological history of the different units belonging to the Karakaya complex, Turkey. Primary and secondary chlorite minerals in the very low-grade metamorphic rocks display interference colors of blue and brown and an appearance of optical isotropy. Chlorites are present in the matrix, pores, and/or rocks units as platy/flaky and partly radial forms. X-ray diffraction (XRD) data indicate that Mg-Fe chlorites with entirely IIb polytype (trioctahedral) exhibit a variety of compositions, such as brunsvigite-diabantite-chamosite. The major element contents and structural formulas of chlorite also suggest these were derived from both felsic and metabasic source rocks. Trace and rare earth element (REE) concentrations of chlorites increase with increasing grade of metamorphism, and these geochemical changes can be related to the tectonic structures, formational mechanics, and environments pres...
... Cretaceous/Tertiary Boundary from the Tethyan Belt, Hekimhan Basin, Turkey: Mineralogical and... more ... Cretaceous/Tertiary Boundary from the Tethyan Belt, Hekimhan Basin, Turkey: Mineralogical and Geochemical Evidence1 HüsEYiN Yalcin and Ömer Bozkaya Department ... dolo-mite at the base of the Paleocene section also was emphasized in studies on the Tecer Forma-tion ...
This study was conducted with the aim of determining the effects of zeolit (klinopilit) addition ... more This study was conducted with the aim of determining the effects of zeolit (klinopilit) addition in broiler feeds on fattening performances in broiler production. Natural clinoptilolit was added in broiler rations at doses of 0 (control), 1, 3 and 5 %. A total of day-age 240 broiler chicks were used in four experimental groups with 3 replicates (20 broiler in each replicate). Live weight gains, feed consumptions, feed conversion ratios, viabilities and litter parameters were recorded for 6 weeks. Final liveweights were found as 2555, 2459, 2431 and 2530 g for the mixed-sex groups, respectively (P>0.05). Feed consumption did not differ significantly between the groups in 6 weeks (P>0.05), but there are differences between the groups from 2 weeks to 5 weeks (P 0.05). Zeolit addition did not affect negatively viabilities in each group (95.55, 100.00, 100.00 ve 100.00) (P>0.05). It was concluded that zeolit can be added in broiler rations at ratios of 1-5 % ratios.
Carpathian journal of earth and environmental sciences
We determined the variability and content of potentially toxic elements (PTEs) in soils formed on... more We determined the variability and content of potentially toxic elements (PTEs) in soils formed on volcanic parent materials erupted from Erciyes stratovolcano in the middle Anatolian region of Turkey. The PTE content of soils formed on tuffs were higher than the soils formed on lavas. All the PTE concentrations decrease with increasing soil depth except for those of Cd. Cr, Cd, and Ni increased with elevation, but Co, Cu, Mn, Pb, and Zn concentrations decreased. The high PTE concentrations in soils could be attributed to the volcanic parent materials. The greatest PTE variations in soils were determined by lithological differences and could be attributed to the types of parent material and their compositions. Site specific soil management practices must be applied to soils in the study area because of the high PTE content.
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