摘要:

This issue of Geology Today is devoted largely to the Earth sciences in Wales, in celebration of Welsh Geology Week (4–14 July 1991). The rationale of the Week and some of the activities taking place during it were described in our last issue (v. 7, p. 86, 1991).We are grateful to Michael G. Bassett of the National Museum of Wales, and his colleagues, for commissioning the Welsh articles and, of course, to the authors for writing them. Because of the nature of the material, the format of this issue differs some‐ what from our usual practice, but normal service in that respect will be resumed with the next issue. In‐ cidentally, as this is the first time we have produced a 'special issue', we would like to hear from readers on whether or not they welcome it and whether or not they would appreciate other such issues, either geographical or thematic, in the f

ISSN:0266-6979    

DOI:10.1111/j.1365-2451.1991.tb00778.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

ISSN:0266-6979    

DOI:10.1111/j.1365-2451.1991.tb00779.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

ISSN:0266-6979    

DOI:10.1111/j.1365-2451.1991.tb00780.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

Parys Mountain, a small hill in north‐east Anglesey, North Wales, has a very long history of copper mining, although exploration from 1955 onwards failed to locate deposits that were economic in modern terms. However, more detailed studies since the early 1980s have revealed a much more promising prospec

ISSN:0266-6979    

DOI:10.1111/j.1365-2451.1991.tb00781.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

Each year many hundreds, if not thousands, of Earth‐science students visit the coastline at Ogmore‐by‐Sea, mid‐Glamorgan. They study the excellent exposures of Lower Carboniferous Limestone, with their well‐preserved coral and other shelly faunas, together with the presumed late Triassic ‘breccias’* that rest unconformably on top. A study of the cements within the breccias may give an insight into syndepositional mineralization and the formation of sedimentary basins linked to the opening of the Atlantic in early M

ISSN:0266-6979    

DOI:10.1111/j.1365-2451.1991.tb00782.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

ISSN:0266-6979    

DOI:10.1111/j.1365-2451.1991.tb00783.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

ISSN:0266-6979    

DOI:10.1111/j.1365-2451.1991.tb00784.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

ISSN:0266-6979    

DOI:10.1111/j.1365-2451.1991.tb00785.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

ISSN:0266-6979    

DOI:10.1111/j.1365-2451.1991.tb00786.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

ISSN:0266-6979    

DOI:10.1111/j.1365-2451.1991.tb00787.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY