| 张泽军.北秦岭松树沟超镁铁岩的成因类型[J].地质找矿论丛,1993,(1):48-61 |
| 北秦岭松树沟超镁铁岩的成因类型 |
| THE GENETIC CLASSIFICATION OF SONGSHUGOU ULTRAMAFIC ROCKS IN NORTH QINLING MOUNTAINS |
| |
| DOI：10.6053/j.issn.1001-1412.1993.1. 005 |
| 中文关键词: 阿尔卑斯型超镁铁岩 成因类型 地幔残余 岩浆结晶 壳幔交代 |
| 英文关键词: |
| 基金项目:国家自然科学基金 |
|
| 摘要点击次数: 1113 |
| 全文下载次数: 1125 |
| 中文摘要: |
| 超镁铁岩的成因类型是国内外长期有争议的课题。通过野外地质、岩石学和地球化学的综合研究分析,笔者认为,松树沟超镁铁岩有三种成因型型,即岩浆结晶(MA)型、地幔残余(R)型和交代(ME)型。MA型可分为玄武质岩浆结晶(BMA)亚类和超镁铁质岩浆结晶(UMA)亚类。ME型可分为地幔交代(MME)亚类和地壳交代(CME)亚类。因此,松树沟岩体是阿尔卑斯型复合成因超镁铁岩体的一个典型例证。这项研究成果可能有助于我们加深对阿尔卑斯型超镁铁岩成因类型的认识。 |
| 英文摘要: |
| The genetic classification of ultramafic rocks is the long-disputed subject. After integrated studies and analyses in field geology, petrology and geochemistry, the writer think that Songshugou ultramafic rocks in North Qinling can be divided into three genetic types, that is the magma crystallization (MA) type, the mantle residue (R) type and the metasomatism (ME) type. The MA type is further divided into two subtypes of basaltic magma crystallization (BMA) and ultramafic magma crystallization (UMA). The ME type also into two subtypes of mantle metasomatism (MME) and crustal metasomatism (CME). Therefore the Songshugou body is a typical example of Alpine-type multigenetic ultramafic body. The author think that achievements of this paper will push studies of genetic classification of Alpine-type ultramafic rocks forward. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
