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内蒙古自治区勒马戈山铅锌矿地质特征及找矿标志 被引量:5
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作者 常德良 吴铁军 +1 位作者 李志江 刘洪涛 《地质找矿论丛》 CAS CSCD 2012年第3期328-331,共4页
勒马戈山铅锌矿产于凝灰岩与二长花岗岩接触带的张性断裂带中,受NW向断裂的控制;矿体主要赋存在碎裂蚀变次火山岩、隐爆角砾岩中,矿体连续性较好,呈脉状,矿体为半隐伏状,埋深不大;矿床属于次火山岩型银多金属矿。
关键词 勒马戈山铅锌矿 次火山岩型银多金属矿 碎裂蚀变次火山岩 隐爆角砾岩 内蒙古自治区中
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Vegetation landscape structure and dynamics in sandy forest-steppe ecotone
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作者 邹春静 韩士杰 +1 位作者 徐文铎 李道棠 《Journal of Forestry Research》 SCIE CAS CSCD 2003年第4期303-306,共4页
Sandy forest-steppe ecotone in Baiyinaobao Natural Reserve of Inner Mongolia Autonomous Region of China is one of the special landscape types in forest-steppe vegetation zone in China. Vegetation landscape types, land... Sandy forest-steppe ecotone in Baiyinaobao Natural Reserve of Inner Mongolia Autonomous Region of China is one of the special landscape types in forest-steppe vegetation zone in China. Vegetation landscape types, landscape patches, and patch size were measured by the field investigation, forest photograph, and airscape. The structure of landscape patches in sandy forest-steppe ecotone, including composition structure, and size structure, was studied and the dynamics and transformation of landscape patches were analyzed. The data obtained in this study could provide theoretical basis for the research on vegetation landscape in forest-steppe ecotones and other vegetation types. 展开更多
关键词 Vegetation landscape STRUCTURE DYNAMICS Sandy forest STEPPE ECOTONE
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