摘要
本文指出若尔盖高原是中国最大泥炭分布区,共有泥炭地 442块,泥炭面积4605.28km^2,容积储量为 7361.67×10~8m^3大地构造、地貌和气候是 3个基本控矿因素,并划分出3个成矿带和4个泥炭成矿类及所属12个成矿型(亚类)。
The Ruoergai Plateau is the biggest distribution area of peat in China. There are 442 pieces of peatland; the total area is 4605.28km, the volume reserve of the peat is 7361.61×10 m3 (2878.28 t), and the development value is great.The basic factors of peatland formation are the Qurternary relative depression of the earth crust, the wide valley landform and the cool-humid climate. These factors decide that the peat-land is devided into three zones: (I) the north zone-the limnetic plain peatland. (2) the middle zone-the wide vally peatland, and (3) the south zone-the intermontane valley peatland. The old-est age of the peat is about 12000 year in the Ruorgai Plateau.According to the landform type, the peatland is devided into 12 types: (1) the limnetic plain peatland, (2) the alluvial fan peatland, (3) the river terrace peatland, (4) the flood plain peatland, (5) the paleochannel wide valley pea'land, (6) the drowned wide valley peatland (7) the shallow valley peatland in the source of rivers, (8) the fault wide valley peatland, (9) the colluvial skirt peatland, (10) the ancient glacial valley peatland, (11) the ancient ice-water al-Invial fan peatland, and (12) the ancient drift platform peatland.
出处
《自然资源学报》
CSSCI
CSCD
1992年第4期334-346,共13页
Journal of Natural Resources
关键词
若尔盖高原
泥炭
划分
the Ruoergai Plateau
peattand
classification
