中国煤炭地质
中國煤炭地質
중국매탄지질
COAL GEOLOGY OF CHINA
2013年
6期
10-15
,共6页
万全煤田%含煤地层%长焰煤%早白垩世早期
萬全煤田%含煤地層%長燄煤%早白堊世早期
만전매전%함매지층%장염매%조백성세조기
Wanquan coalfield%coal-bearing strata%long flame coal%earlier Early Cretaceous Epoch
冀西北地区发育有一系列中生代含煤盆地，其中万全白垩纪煤田累计查明煤炭资源量约达10亿t。以往地质勘查成果显示本区煤类均为褐煤，经济价值低。根据近年李虎庄区煤炭普查成果，该区原煤干燥无灰基挥发分（Vdaf）均大于37%，透光率（PM）平均58.77%，最大可达72%，按《中国煤炭分类国家标准》（GB/T 5751-2009），煤类划归长焰煤(CY)。煤质的变化引起了河北省煤田地质学界的极大关注，同时引发了对万全含煤地层时代归属、煤类分区等问题的讨论。依据煤层及顶底板孢粉样品分析结果，将含煤地层暂定为早白垩世早期的西瓜园组。
冀西北地區髮育有一繫列中生代含煤盆地，其中萬全白堊紀煤田纍計查明煤炭資源量約達10億t。以往地質勘查成果顯示本區煤類均為褐煤，經濟價值低。根據近年李虎莊區煤炭普查成果，該區原煤榦燥無灰基揮髮分（Vdaf）均大于37%，透光率（PM）平均58.77%，最大可達72%，按《中國煤炭分類國傢標準》（GB/T 5751-2009），煤類劃歸長燄煤(CY)。煤質的變化引起瞭河北省煤田地質學界的極大關註，同時引髮瞭對萬全含煤地層時代歸屬、煤類分區等問題的討論。依據煤層及頂底闆孢粉樣品分析結果，將含煤地層暫定為早白堊世早期的西瓜園組。
기서북지구발육유일계렬중생대함매분지，기중만전백성기매전루계사명매탄자원량약체10억t。이왕지질감사성과현시본구매류균위갈매，경제개치저。근거근년리호장구매탄보사성과，해구원매간조무회기휘발분（Vdaf）균대우37%，투광솔（PM）평균58.77%，최대가체72%，안《중국매탄분류국가표준》（GB/T 5751-2009），매류화귀장염매(CY)。매질적변화인기료하북성매전지질학계적겁대관주，동시인발료대만전함매지층시대귀속、매류분구등문제적토론。의거매층급정저판포분양품분석결과，장함매지층잠정위조백성세조기적서과완조。
A series of Mesozoic coal-bearing basins have developed in the northwestern Hebei, among them, the Wanquan Cretaceous coalfield possesses accumulative total measured coal resources about 1 billion tons. The previous geological exploration results have shown the coal ranks in the area are all lignite with low economic value. Based on the Lihuzhuang area coal prospecting results in re-cent years, the raw coal dry ash-free basis volatile-matter contents (Vdaf) are all>37%, average transmittance (PM) 58.77%, maximum can be 72%. According to the“Chinese Classification of Coals”(GB/T 5751-2009), the coal rank should be long flame coal (CY). The change of coal rank has caused great concern in the Hebei coal geological circles, and initiated discussions on coal-bearing strata chronological age, coal rank division in Wanquan coalfield. According to analyzed results of sporopollen samples from coal seam, roof and floor, have determined the coal-bearing strata belong to the Xiguayuan Formation, earlier Early Cretaceous Epoch.
