ISSN:0016-786X    

DOI:10.1080/11035895409453537

出版商:Taylor & Francis Group    

年代:1954

数据来源: Taylor

摘要:

This paper is concerned with the discovery of red beds in the coal-bearing Rhaetic-Liassie strata at Östraby and Skromberga in northwestern Scania. Red clays at Östraby earlier were considered as Keuper (Kågeröd) in age, the interpretation of the structure being a dome-shaped elevation with varicolored older sediments in the core of the uplift. Palacontologic evidence supported this view, as fossils suggestive of a Rhaetic age were found immediately above the red clays. Contrary to this assumption, gravimetric explorations and exploratory drilling carried out during recent years have revealed, that Östraby is structurally a depressed area, surfaced by younger deposits of the Rhaetic-Liassic strata. The chemical properties of the red Östraby clays as compared with red Kågeröd clays are described. The contradiction in the occurrence of red beds in a coal-bearing sedimentary environment is examined on the background of an analogous modern occurrence in Brazil, where red colors of sediments under reducing conditions were preserved because of rapid burial. A study of the palaeoclimatie and palaeogeographic factors and of the tectonical framework of the Rhaetic-Liassic sedimentation in Seania affords evidence, that the red clays described are the sedimentary response to tectonism, indicative of tectonic activity contemporaneous with deposition.

ISSN:0016-786X    

DOI:10.1080/11035895409453538

出版商:Taylor & Francis Group    

年代:1954

数据来源: Taylor

摘要:

A boring for water supply at Björnstorp E of Lund was placed in the south-western faultline of the Archæan horst Romeleåsen; it penetrated 66 metres of Ceno. manian greensand at a depth between 61 and 127 metres. As far as concerns Sweden this greensand was not known before, except in two deep borings at Höllviken, the south-westernmost corner of the province of Scania, were it was pierced ten years ago at a depth of 1 200 metres. The greensand contained ostracods, foraminifers, and macroscopic shell fragments, pebbles of sedimentary rocks, a piece of asphalt and probably traces of other bituminous products.

ISSN:0016-786X    

DOI:10.1080/11035895409453539

出版商:Taylor & Francis Group    

年代:1954

数据来源: Taylor

ISSN:0016-786X    

DOI:10.1080/11035895409453540

出版商:Taylor & Francis Group    

年代:1954

数据来源: Taylor

ISSN:0016-786X    

DOI:10.1080/11035895409453541

出版商:Taylor & Francis Group    

年代:1954

数据来源: Taylor

摘要:

This paper gives a brief account of the present material of varve measurements from all over Sweden and vicinity, The first radial lines accomplished, datings were mainly made in marginal directions, although radial lines are at work.

ISSN:0016-786X    

DOI:10.1080/11035895409453542

出版商:Taylor & Francis Group    

年代:1954

数据来源: Taylor

ISSN:0016-786X    

DOI:10.1080/11035895409453543

出版商:Taylor & Francis Group    

年代:1954

数据来源: Taylor

ISSN:0016-786X    

DOI:10.1080/11035895409453544

出版商:Taylor & Francis Group    

年代:1954

数据来源: Taylor

ISSN:0016-786X    

DOI:10.1080/11035895409453545

出版商:Taylor & Francis Group    

年代:1954

数据来源: Taylor

ISSN:0016-786X    

DOI:10.1080/11035895409453546

出版商:Taylor & Francis Group    

年代:1954

数据来源: Taylor