摘要:

The Archean carbonate rocks at Forsby and Bondökna contain sufficiently high limestone content to provide a source of raw material for the cement industry and, for this reason, have been the subject of close investigations. Special attention has been devoted to the calcite-dolomite ratios. Both deposits contain limestone and dolomite stone, but the known quantities of the latter are considerably greater at Bondökna.

ISSN:0016-786X    

DOI:10.1080/11035896209452951

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

摘要:

In this paper, the author summarizes his investigations into the occurence and distribution of dolomite and magnesium-silicate minerals in Svecofennian carbonate rocks. As a result of his investigations, the author has come to the conclusion that it is very probable that dolomite rocks have originated in a prehistoric sea, either by direct chemical precipitation or dolomitization of limestone during an early stage of diagenesis. The theory that dolomitization first occurred during the orogenic period of the Svecofennian evolution, which theory is propounded in current Swedish literature, is considered unlikely. On the other hand the opposite is possible,i.e., that the dolomite rocks were partially de-dolomitized during a period of metamorphism and gave rise to limestone and solutions containing magnesium which could result in magnesia metasomatism of the contiguous rocks.

ISSN:0016-786X    

DOI:10.1080/11035896209452952

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

摘要:

The present paper is a review of a lecture on Tertiary charophytes as stratigraphic markers presented to the Geological Society of Stockholm in 1960 by the late Dr. Henning Horn af Rantzien.

ISSN:0016-786X    

DOI:10.1080/11035896209452953

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

ISSN:0016-786X    

DOI:10.1080/11035896209452954

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

ISSN:0016-786X    

DOI:10.1080/11035896209452955

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

ISSN:0016-786X    

DOI:10.1080/11035896209452957

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

ISSN:0016-786X    

DOI:10.1080/11035896209452958

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

摘要:

Hans Schneiderhöhn: Die Erzlagerstätten der Erde. Band II. Die Pegmatite, XVIII + 720 sidor med 264 textfigurer och 16 utviksplanscher. Gustav Fischer, Stuttgart 1961. Pris i svart helklotband DM 86:—. Reviewed by Percy Quensel.

ISSN:0016-786X    

DOI:10.1080/11035896209452959

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

ISSN:0016-786X    

DOI:10.1080/11035896209452960

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

ISSN:0016-786X    

DOI:10.1080/11035896209452961

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor