煤田地质与勘探
煤田地質與勘探
매전지질여감탐
COAL GEOLOGY & EXPLORATION
2014年
6期
8-13
,共6页
煤层结构%煤岩和煤质%岩浆活动%豫东地区
煤層結構%煤巖和煤質%巖漿活動%豫東地區
매층결구%매암화매질%암장활동%예동지구
coal texture%coal petrology and coal quality%magmatic activity%eastern Henan Province
为指导豫东地区煤矿合理部署、高效生产，基于大量钻井和测试资料的综合分析和对比研究，探讨了豫东地区岩浆活动的基本特征及其对煤层结构和煤质的影响。研究结果表明：燕山中晚期的岩浆活动对豫东地区的煤层结构和煤层连续性造成影响，导致煤层变薄、分叉、尖灭和吞噬；同时，岩浆活动导致本区煤层变质程度普遍增高，煤质参数发生变化。煤层的原始赋存状态、岩浆侵入的初始温度、侵入岩体的厚度、岩浆侵入煤层的方式、岩体离煤层的距离、围岩和岩体上覆地层的岩性等是影响煤层结构和煤变质程度的主要控制因素。
為指導豫東地區煤礦閤理部署、高效生產，基于大量鑽井和測試資料的綜閤分析和對比研究，探討瞭豫東地區巖漿活動的基本特徵及其對煤層結構和煤質的影響。研究結果錶明：燕山中晚期的巖漿活動對豫東地區的煤層結構和煤層連續性造成影響，導緻煤層變薄、分扠、尖滅和吞噬；同時，巖漿活動導緻本區煤層變質程度普遍增高，煤質參數髮生變化。煤層的原始賦存狀態、巖漿侵入的初始溫度、侵入巖體的厚度、巖漿侵入煤層的方式、巖體離煤層的距離、圍巖和巖體上覆地層的巖性等是影響煤層結構和煤變質程度的主要控製因素。
위지도예동지구매광합리부서、고효생산，기우대량찬정화측시자료적종합분석화대비연구，탐토료예동지구암장활동적기본특정급기대매층결구화매질적영향。연구결과표명：연산중만기적암장활동대예동지구적매층결구화매층련속성조성영향，도치매층변박、분차、첨멸화탄서；동시，암장활동도치본구매층변질정도보편증고，매질삼수발생변화。매층적원시부존상태、암장침입적초시온도、침입암체적후도、암장침입매층적방식、암체리매층적거리、위암화암체상복지층적암성등시영향매층결구화매변질정도적주요공제인소。
To guide reasonable deployment and efficient production for coal mine in eastern region of Henan Province, based on the comprehensive analysis and comparative study of a large number of drilling and test data, this paper explores the basic features of magmatic activities and their influence on the coal texture and coal quality in eastern region of Henan Province. The result shows that magmatic activities during middle-late stage of Yanshan period has effected the texture and the continuity of coal seams, causing the thinning, bifurcate and pinch-out of coal seams in the eastern region of Henan. Moreover, magmatic activities led to the general increase in metamorphic grade of coal seams, and the change of coal quality parameters. The main control factors influencing coal texture and coal metamorphism degree include the primitive occurrence state of coal seams, the initial temperature and the thickness as well as styles of the magmatic intrusion, the distance of the magmatic intrusion from coal seam, surrounding rock mass and lithology of overlying strata.
