Petrographic characterization of coals in Kozlu and Kilic Formations (Westphalian A), Zonguldak, Turkey

Conference · Sat Dec 01 00:00:00 EST 1984 · Am. Assoc. Pet. Geol., Bull.; (United States)

OSTI ID:5745507

Toprak, S; Deul, M

The Zonguldak coal region is about 130 km (80 mi) long and 30-50 km (18-31 mi) wide and is situated on the southwest coast of the Black Sea. The basin is the main bituminous coal-producing region of Turkey. It has a complicated faulted structure. The Carboniferous of the Zonguldak region consists of three natural divisions: Alacaagzi (Namurian), Kozlu and Kilic (Westphalian A), and Karadon (Westphalian B, C, and D). The main concern of this study is the Kozlu and Kilic Formations, which have about 31 coal seams with a total thickness of 45 m (150 ft) of coal. The coals show semi-bright luster and very fine banding. Clarain, fusain, and durain are common lithotypes; the predominant lithotype is vitrinous clarain. Few thick vitrain bands are present. Some Turkish bituminous coals contain a very high percentage of mineral matter. Clay minerals, pyrite, and calcite are the most common. Ninety polished samples were taken from three different locations - Karadon, Uzulmez, and Kozlu - and analyzed under a reflected light microscope with oil immersion objectives. The Turkish bituminous coals exhibit a complex combination of macerals and microlithotypes. Vitrinite is the most abundant maceral type, and exinite is the least abundant. The presence of a high amount of inertinite macerals and duroclarite as well as virtinertite microlithotypes suggests a lacustrine depositional environment for the coals. Successive coal seams, or even a single coal seam, indicate transgressions and regressions.

• Research Organization: Univ. of Pittsburgh, PA
• OSTI ID: 5745507
• Report Number(s): CONF-8410269-
• Journal Information: Am. Assoc. Pet. Geol., Bull.; (United States), Vol. 68:12; Conference: AAPG Eastern Section meeting, Pittsburgh, PA, USA, 10 Oct 1984
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL
PETROGRAPHY
TURKEY
COAL PRODUCING DISTRICTS
CLASSIFICATION
GEOLOGIC FAULTS
GEOLOGIC FORMATIONS
MACERALS
MISSISSIPPIAN PERIOD
PENNSYLVANIAN PERIOD
ASIA
CARBONACEOUS MATERIALS
DEVELOPING COUNTRIES
ENERGY SOURCES
FOSSIL FUELS
FUELS
GEOLOGIC AGES
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
MATERIALS
MIDDLE EAST
PALEOZOIC ERA
010600* - Coal
Lignite
& Peat- Properties & Composition