中国煤炭地质
中國煤炭地質
중국매탄지질
COAL GEOLOGY OF CHINA
2014年
9期
1-7
,共7页
商晓旭%邵龙义%马立军%野兆瑞%曲延林
商曉旭%邵龍義%馬立軍%野兆瑞%麯延林
상효욱%소룡의%마립군%야조서%곡연림
七星河盆地%古近纪%新近纪%宝泉岭组%富锦组%聚煤作用
七星河盆地%古近紀%新近紀%寶泉嶺組%富錦組%聚煤作用
칠성하분지%고근기%신근기%보천령조%부금조%취매작용
Qixinghe Basin%Paleogene%Neogene%Baoquanling Formation%Fujin Formation%coal accumulation
黑龙江省东部七星河盆地是一新生代聚煤盆地，其含煤地层为古近系宝泉岭组、新近系富锦组。宝泉岭组由各级砂岩、泥岩、炭质泥岩以及褐煤组成，发育滨浅湖相、深-半深湖相、三角洲平原相，属于湖泊沉积体系、三角洲沉积体系。富锦组主要由泥岩、粉砂岩、中砂岩、含砾粗砂岩及煤层、炭质泥岩、硅藻岩组成，发育滨浅湖相、扇三角洲平原相，分别属于湖泊沉积体系和扇三角洲沉积体系。层序SI相当于宝泉岭组，发育低位体系域、湖侵体系域和高位体系域，煤层主要发育高位体系域中后期，成煤环境以滨浅湖淤积沼泽为主。层序SII相当于富锦组，主要发育湖侵体系域、高位体系域，局部地区发育低位体系域，煤层亦主要发育高位体系域中后期，成煤环境以扇三角洲淤积沼泽和滨浅湖淤积沼泽为主。层序SI、SII的高位体系域中后期，盆地基底沉降速率和物源供给处于相对平衡状态，主要发育了扇三角洲淤积沼泽、滨浅湖和滨浅湖淤积沼泽环境，发育可采煤层。
黑龍江省東部七星河盆地是一新生代聚煤盆地，其含煤地層為古近繫寶泉嶺組、新近繫富錦組。寶泉嶺組由各級砂巖、泥巖、炭質泥巖以及褐煤組成，髮育濱淺湖相、深-半深湖相、三角洲平原相，屬于湖泊沉積體繫、三角洲沉積體繫。富錦組主要由泥巖、粉砂巖、中砂巖、含礫粗砂巖及煤層、炭質泥巖、硅藻巖組成，髮育濱淺湖相、扇三角洲平原相，分彆屬于湖泊沉積體繫和扇三角洲沉積體繫。層序SI相噹于寶泉嶺組，髮育低位體繫域、湖侵體繫域和高位體繫域，煤層主要髮育高位體繫域中後期，成煤環境以濱淺湖淤積沼澤為主。層序SII相噹于富錦組，主要髮育湖侵體繫域、高位體繫域，跼部地區髮育低位體繫域，煤層亦主要髮育高位體繫域中後期，成煤環境以扇三角洲淤積沼澤和濱淺湖淤積沼澤為主。層序SI、SII的高位體繫域中後期，盆地基底沉降速率和物源供給處于相對平衡狀態，主要髮育瞭扇三角洲淤積沼澤、濱淺湖和濱淺湖淤積沼澤環境，髮育可採煤層。
흑룡강성동부칠성하분지시일신생대취매분지，기함매지층위고근계보천령조、신근계부금조。보천령조유각급사암、니암、탄질니암이급갈매조성，발육빈천호상、심-반심호상、삼각주평원상，속우호박침적체계、삼각주침적체계。부금조주요유니암、분사암、중사암、함력조사암급매층、탄질니암、규조암조성，발육빈천호상、선삼각주평원상，분별속우호박침적체계화선삼각주침적체계。층서SI상당우보천령조，발육저위체계역、호침체계역화고위체계역，매층주요발육고위체계역중후기，성매배경이빈천호어적소택위주。층서SII상당우부금조，주요발육호침체계역、고위체계역，국부지구발육저위체계역，매층역주요발육고위체계역중후기，성매배경이선삼각주어적소택화빈천호어적소택위주。층서SI、SII적고위체계역중후기，분지기저침강속솔화물원공급처우상대평형상태，주요발육료선삼각주어적소택、빈천호화빈천호어적소택배경，발육가채매층。
The Qixinghe Basin in eastern Heilongjiang is a Cenozoic coal accumulation basin. Its coal-bearing strata belong to Paleo-gene Baoquanling Formation and Neogene Fujin Formation. The Baoquanling Formation is comprised of siltstone, sandstone of various grain sizes, mudstone, carbonaceous mudstone and lignite;developed littoral-shallow lacustrine facies, deep-semideep lacustrine fa-cies, delta plain facies belong to lake sedimentary system, lake delta sedimentary system. The Fujin Formation is comprised of mud-stone, siltstone, medium-grained sandstone, pebbly coarse-grained sandstone, coal, carbonaceous mudstone and diatomite;developed littoral-shallow lacustrine facies, fan delta plain facies, belong to lake sedimentary system and fan delta sedimentary system respective-ly. Sequence SI is corresponding to Baoquanling Formation;developed lowstand system tract, lacustrine transgressive system tract and highstand system tract. Coal seams were mainly developed during middle to late stages of highstand system tract;coal-forming environ-ment was mainly littoral-shallow lacustrine silting bog. Sequence SII is corresponding to Fujin Formation;mainly developed lacustrine transgressive system tract, highstand system tract, locally lowstand system tract. Also, coal seams were mainly developed during middle to late stages of highstand system tract;coal-forming environment was mainly fan delta silting bog and littoral-shallow lacustrine silt-ing bog. During sequences SI, SII middle to late stages of highstand system tract, basin basement settlement rate and sediment supply were in a relatively balanced state, mainly developed fan delta silting bog, in littoral-shallow lacustrine and littoral-shallow lacustrine silting bog environments have developed mineable coal seams.
