ISSN:0266-6979    

DOI:10.1046/j.1365-2451.1996.00001.x

出版商:Blackwell Science Ltd    

年代:1996

数据来源: WILEY

ISSN:0266-6979    

DOI:10.1046/j.1365-2451.1996.00003.x

出版商:Blackwell Science Ltd    

年代:1996

数据来源: WILEY

ISSN:0266-6979    

DOI:10.1046/j.1365-2451.1996.00004.x

出版商:Blackwell Science Ltd    

年代:1996

数据来源: WILEY

摘要:

Many animals show sexual dimorphism, one sex being consistently larger and heavier than the other. No doubt, examples of the same phenomenon also occur in the fossil record, but they may be difficult to spot and even more difficult to prove. The problems are greater still when considering trace fossils such as footprints. Even so, there seems reason to believe that some types of footprint do show sexual dimorphism.

ISSN:0266-6979    

DOI:10.1046/j.1365-2451.1996.00005.x

出版商:Blackwell Science Ltd    

年代:1996

数据来源: WILEY

摘要:

Al Wahbah, on Harrat Kishb, is the most spectacular of several volcanic explosion craters found on the lava fields of western Saudi Arabia. A Quaternary phreatic event drilled out a crater 2 km in diameter through Proterozoic basement rocks and Quaternary lava flows. The crater is rimmed with a tuff ring of debris from the explosion, around which were diverted Holocene basaltic lavas.

ISSN:0266-6979    

DOI:10.1046/j.1365-2451.1996.00006.x

出版商:Blackwell Science Ltd    

年代:1996

数据来源: WILEY

摘要:

Collecting geological data in the desert of east‐central Oman is very different from working in temperate countries. The fieldwork depends largely on traditional methods, combined with the advantage of modern aids such as the Global Positioning System and radio communication. The information gained on the ground, followed up by modern laboratory and computing techniques in the UK, is being used to shed light on the sedimentological and structural evolution of this fascinating are

ISSN:0266-6979    

DOI:10.1046/j.1365-2451.1996.00007.x

出版商:Blackwell Science Ltd    

年代:1996

数据来源: WILEY