|
1. |
Campanian Stromatoporoids from the Upper Cretaceous of Southern Sweden |
|
Geologiska Föreningen i Stockholm Förhandlingar,
Volume 94,
Issue 3,
1972,
Page 393-409
Krister Brood,
Preview
|
PDF (1616KB)
|
|
摘要:
Three stromatoporoid species,Baastadiostroma typicagen. et sp. n,Scaniostroma gracilisgen. et sp. n., andNeuropora scamense sp. n. from the Campanian of Skåne, Sweden, are described. A new superfamilyNeuroporicae, is suggested for the neuroporids.Neuroporicaeis characterized by its microstructure, which consists of elongated trabeculae arranged in a cone-in-cone pattern.Baastadiostromais placed in a new family,Baastadiostromidae, which is characterized by the presence of a circumlamellar microstructure.
ISSN:0016-786X
DOI:10.1080/11035897209455406
出版商:Taylor & Francis Group
年代:1972
数据来源: Taylor
|
2. |
Genese und Alter der Horste Schonens |
|
Geologiska Föreningen i Stockholm Förhandlingar,
Volume 94,
Issue 3,
1972,
Page 411-422
E. Bölau,
Preview
|
PDF (809KB)
|
|
摘要:
The problems of the Scanian horsts comprise their genesis and age. Not only the elevations of the Gneissie-Granitic Basement, forming structural and topographic highs because of their resistance to weathering (Söderås, Kullen, Hallandsås etc.) have to be mentioned in this connection. There exists a great number of minor forms, which differ materially in composition and resistance and display some variety of character, but. obey the same deeper causal forces. These are: 1. antithetic movement of the fault blocks; 2. reverse drag and 3. transverse tectonics. Although complex in detail, is each structure the result of the interplay of these factors. — The tectonic behaviour clearly demonstrates the relation of the structures to the Saxonic movements in Scania. Their age is accordingly post-Variscian.
ISSN:0016-786X
DOI:10.1080/11035897209455407
出版商:Taylor & Francis Group
年代:1972
数据来源: Taylor
|
3. |
III. On Igelström's Manganese Arsenates and Antimonates from the Sjö Mine, Grythyttan, Örebro County, Sweden |
|
Geologiska Föreningen i Stockholm Förhandlingar,
Volume 94,
Issue 3,
1972,
Page 423-434
PaulB. Moore,
Preview
|
PDF (564KB)
|
|
摘要:
Studies on Igelström's type specimens show that the following names should be relegated to synonymy: arseniodialytitc (= hausmannite), arseniopleite (= caryinite), basiliite (= hausmannite + feitknechtite), chloroarsenian (= allactite), ferrostibian (= långbanite), hematostibiite (= catoptrite), magnetostibian (= jacobsite), neotostibian (= hausmannite + feitknechtite), pleonectite (= hedyphane; = tepliroite-knebelite; = berzeliite), pleurasite (= sarkinite, in part), pyrrhoarsenite (= berzeliite), retinostibian (= welinite), rhodoarsenian (= rhodonite), sjögruvite (= caryinite), and nytt arseniat (new arsenate) (= ganophyllite).
ISSN:0016-786X
DOI:10.1080/11035897209455408
出版商:Taylor & Francis Group
年代:1972
数据来源: Taylor
|
4. |
New ostracods of the Llandoverian of Lithuania |
|
Geologiska Föreningen i Stockholm Förhandlingar,
Volume 94,
Issue 3,
1972,
Page 435-438
Antanas Pranskevichius,
Preview
|
PDF (231KB)
|
|
摘要:
The results of investigations of the Llandoverian ostracods of Lithuania are given. From the deposits of the Švenčionys strata two new species are described.Microcheilinella iniquan. sp. andSilenis acern. sp.
ISSN:0016-786X
DOI:10.1080/11035897209455409
出版商:Taylor & Francis Group
年代:1972
数据来源: Taylor
|
5. |
Ostracods from the Upper Silurian of the Southern Baltic region |
|
Geologiska Föreningen i Stockholm Förhandlingar,
Volume 94,
Issue 3,
1972,
Page 439-447
Antanas Pranskevichius,
Preview
|
PDF (550KB)
|
|
摘要:
The Upper Silurian deposits in the southern Baltic region are represented by marine carbonaceous rocks and are subdivided into the Birštonas Beds of the Lower Ludlovian, the Pagegiai Beds of the Upper Ludlovian, and the Minija-Jura Beds of the Downtonian.
ISSN:0016-786X
DOI:10.1080/11035897209455410
出版商:Taylor & Francis Group
年代:1972
数据来源: Taylor
|
6. |
The transformation of natural clay minerals at elevated pressures and temperatures |
|
Geologiska Föreningen i Stockholm Förhandlingar,
Volume 94,
Issue 3,
1972,
Page 449-458
B. Velde,
A.-M. Byström-Brusewitz,
Preview
|
PDF (411KB)
|
|
摘要:
Hydrothermal experiments have been carried out, using three, mixed-layered, natural, clay minerals as starting material. The results allow of a qualitative comparison being made with experimental work done in a simplified chemical system. Three major parageneses are proposed — one in which fully expandable phases are stable, one in which a more restricted range of expandability is possible, depending upon the temperature, and a third in which the illite —allevardite (about 30 % expandable ordered structure) assemblage is predominant. The trioctahedral equivalents of these minerals appear to be stable at higher temperatures.
ISSN:0016-786X
DOI:10.1080/11035897209455411
出版商:Taylor & Francis Group
年代:1972
数据来源: Taylor
|
7. |
Some ridges formed in the open crevasses of a melting ice sheet in northern Sweden |
|
Geologiska Föreningen i Stockholm Förhandlingar,
Volume 94,
Issue 3,
1972,
Page 459-463
Esko Daniel,
Preview
|
PDF (210KB)
|
|
摘要:
The author has observed some 50 ridges in the vicinity of Arvidsjaure in northern Sweden, some of which were examined in an attempt to find out how they were formed. The locations of the ridges, their shapes, the fact that they consist of a loose sandy till as well as glaciofluvial sediments and the lack of preferred orientation of the elongated stones show that the ridges, in the opinion of the author, were formed through the accumulation in open crevasses of a thin, more or less dead ice.
ISSN:0016-786X
DOI:10.1080/11035897209455412
出版商:Taylor & Francis Group
年代:1972
数据来源: Taylor
|
8. |
An erraticAmaltheusfrom drift at Møens Klint, Denmark |
|
Geologiska Föreningen i Stockholm Förhandlingar,
Volume 94,
Issue 3,
1972,
Page 464-466
R.A. Reyment,
Preview
|
PDF (208KB)
|
|
摘要:
A specimen of the Upper Pliensbachian ammonite speciesAmaltheus margaritatusde Montfort from drift in Denmark is described and figured.
ISSN:0016-786X
DOI:10.1080/11035897209455413
出版商:Taylor & Francis Group
年代:1972
数据来源: Taylor
|
9. |
Archaeopyle formation in the genus Lejeunia Gerlach, 1961 emend |
|
Geologiska Föreningen i Stockholm Förhandlingar,
Volume 94,
Issue 3,
1972,
Page 467-469
Göran Kjellström,
Preview
|
PDF (205KB)
|
|
摘要:
The present note reports for the first time specimens of the genusLejeuniapossessing a precingular archaeopyle with simple free operculum. The diagnosis of the genus and the type species are thus emended.
ISSN:0016-786X
DOI:10.1080/11035897209455414
出版商:Taylor & Francis Group
年代:1972
数据来源: Taylor
|
10. |
The determination of plagioclase feldspars from granitic rocks, using the (l3l/l32) reflection |
|
Geologiska Föreningen i Stockholm Förhandlingar,
Volume 94,
Issue 3,
1972,
Page 470-472
Peter Kresten,
Yildiz Kafkas-Kresten,
Preview
|
PDF (145KB)
|
|
摘要:
The An contents of plagioclases from granitic rocks have been determined by X-ray diffractometry, using the (131/132) reflection. This method yielded values which are generally slightly higher than measurements with the universal stage.
ISSN:0016-786X
DOI:10.1080/11035897209455415
出版商:Taylor & Francis Group
年代:1972
数据来源: Taylor
|
|