TAILIEUCHUNG - Biogeochemical interrelations between the Çayırhan oil shales and some plants growing on them (Turkey)

Oil shales are exposed in wide areas around the town of Çayırhan (Beypazarı-Ankara). It is known that some elements are enriched in oil shales and similar organic-material rich rocks. The purpose of this study was to understand the possible relations between the element abundances found at the Çayırhan oil shales (ÇOS) and those of some plant types growing on these rocks. | B. YAVUZ PEHLİVANLI, Ş. KOÇ, E. ERGİN, A. SARI, L. AÇIK, M. VURAL Research Article Turk J Bot 36 (2012) 503-518 © TÜBİTAK doi: Biogeochemical interrelations between the Çayırhan oil shales and some plants growing on them (Turkey) Berna YAVUZ PEHLİVANLI1,2, Şükrü KOÇ1, Esra ERGİN3, Ali SARI1, Leyla AÇIK3,*, Mecit VURAL3 1 Department of Geology, Engineering Faculty, Ankara University, Ankara - TURKEY 2 Department of Geological Engineering, Bozok University, 66100 Yozgat - TURKEY 1 Department of Biology, Science and Arts Faculty, Gazi University, Ankara – TURKEY Received: ● Accepted: Abstract: Oil shales are exposed in wide areas around the town of Çayırhan (Beypazarı-Ankara). It is known that some elements are enriched in oil shales and similar organic-material rich rocks. The purpose of this study was to understand the possible relations between the element abundances found at the Çayırhan oil shales (ÇOS) and those of some plant types growing on these rocks. The results of chemical analysis of selected plants (8 species) were compared with each other and with element abundances from the ÇOS. The plant types examined were divided into 2 groups with respect to enrichment factors. The first group contained 6 plant species: Eryngium campestre L. var. virens Link, Echinophora tournefortii Jaub. & Spach, Sideritis gulendamiae & Karavel., Euphorbia macroclada Boiss., Reichardia glauca , and Centaurea virgata Lam. In this group of plant types, almost all of the same elements (Na, Si, V, Cr, Rb, Y, Zr, Mo, Sn, Sb, Tl, Bi, Th, and U) were found to be enriched. The second group was represented by Echinops pungens Trautv. var. pungens and Reseda lutea L. var. lutea. In these plants, only 6 elements (U, Zr, Si, V, Cr, and As) were enriched. Some elements (., Si, V, Rb, Y, Cr, Zr, Mo, Sb, Bi, and U) were enriched in both groups. Among these 10 elements, Si, Cr, Zr, and U showed enrichment in all plant .

• Nông nghiệp
• Çayırhan oil shales
• Major element contents
• Trace element contents
• Organic material rich rocks
• Rock geochemistry
• Earth sciences
• Natural radioactivity
• Major and accessory minerals
• Gamma ray spectrometry
• Wall rock granitoids
• Kestanbol granitoid
• Magma mingling
• Mafic microgranular enclave
• Hybrid magma
• Karst bauxite
• Ore deposit
• Jurassic Shemshak formation
• Triassic Elika formation