ISSN:0016-786X    

DOI:10.1080/11035895709447187

出版商:Taylor & Francis Group    

年代:1957

数据来源: Taylor

ISSN:0016-786X    

DOI:10.1080/11035895709447188

出版商:Taylor & Francis Group    

年代:1957

数据来源: Taylor

摘要:

Two main theories for the genesis of the skarn ores of Central Sweden are presented — partly, that these were formed through metasomatism by the older granites (Sw.urgraniter), and partly, that they are metamorphic products of sediments deposited during the formation of the Leptite series. Among the principal arguments employed in the discussions, that of the structural peculiarities of the ore bodies was the most important. Few detailed studies of the most common skarn minerals have been carried out. In the present paper the minerals constituting the principal portion of the skarn of the Åsgruvan mine in the Norberg field are described. This has been considered to be a garnet-pyroxeneskarn typical for the Central Swedish iron-ore fields. The Norberg field has been most completely treated by Geijer (1930), who considers the ore of the Åsgruvan mine to have been formed by metasomatic processes.

ISSN:0016-786X    

DOI:10.1080/11035895709447189

出版商:Taylor & Francis Group    

年代:1957

数据来源: Taylor

摘要:

Pitchblende, hematite, and chlorite are formed in a large carbonate breccia consisting partly of greenstones and greenschists, partly of albite-rich rocks of several kinds. One of the latter, a coarse-grained albite »syenite» contains the uranium mineralization, while hematite is common in the whole breccia.

ISSN:0016-786X    

DOI:10.1080/11035895709447190

出版商:Taylor & Francis Group    

年代:1957

数据来源: Taylor

摘要:

A method is described for studying the movement of soil water by application of a weak solution (e. g., one per cent) of NH4SCN. After a suitable interval a profile is dug up, and sprayed with a strong solution (e. g., 20 per cent) of FeCl3. All parts of the profile containing thiocyanate then become deep red.

ISSN:0016-786X    

DOI:10.1080/11035895709447191

出版商:Taylor & Francis Group    

年代:1957

数据来源: Taylor

ISSN:0016-786X    

DOI:10.1080/11035895709447193

出版商:Taylor & Francis Group    

年代:1957

数据来源: Taylor

ISSN:0016-786X    

DOI:10.1080/11035895709447194

出版商:Taylor & Francis Group    

年代:1957

数据来源: Taylor

ISSN:0016-786X    

DOI:10.1080/11035895709447195

出版商:Taylor & Francis Group    

年代:1957

数据来源: Taylor

ISSN:0016-786X    

DOI:10.1080/11035895709447197

出版商:Taylor & Francis Group    

年代:1957

数据来源: Taylor

ISSN:0016-786X    

DOI:10.1080/11035895709447198

出版商:Taylor & Francis Group    

年代:1957

数据来源: Taylor