- 责任者：Li Qiang (School of Geosciences ; Yangtze University ; Jingzhou 434023 ; China)
- 刊名：Acta Petrologica et Mineralogica
- 出版年：2011
- 卷期：30(2)
- 关键词：钠长岩 ; albitite ; hot water sedimentation ; 秦岭 ; Qinling Mountains
- 页码：p.199-207
- 图表：6 illus., 5 tables, 25 refs.
- 分类号：0803
- 出版序号：20122348
- issnNo：ISSN1000-6524
- isbnNo：CN11-1966/P
Albitite, a special kind of sedimentary rock in South Qinling, is mainly distributed in Devonian and Silurian strata of Fengxian-Taibai, Shanyang-Zhashui and Zhen’an-Xunyang basins. It is closely related to many large-middle lead-zinc and gold deposits in the South Qinling orogenic belt. The REE data by ICP-MS show that albitite and strata have similar total REE, HREE and LREE. The chondrite-normalized REE patterns of albitite and regional strata are quite similar, caused probably by the mixture of hydrogenous sediments. Albitite was formed at the sedimentary or early diagenetic stage, simultaneity with the formation of normal sedimentary rocks. Therefore it is a special kind of hydrothermal sedimentary rock, having characteristics of both marine sedimentary rock and typical hydrothermal sedimentary rock.