Lusitanian Stage

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Lusitanian Stage

 

(from the Latin “Lusitania,” the ancient name for Portugal), the Mediterranean type of the upper part of the Oxfordian stage of the Jurassic system. It is not accepted as an independent stage. It was identified in 1885 by the French geologist P. Choffat. The type section of the Lusitanian stage in Portugal contains a stratum of limestones and clays up to 1,500 m thick with interlayers of sandstones and conglomerates.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.