Malm


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malm

[mäm]
(geology)

Malm

[mäm]
(geology)
The Upper Jurassic geologic series, above Dogger and below Cretaceous.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Malm

 

(the name “malm” is given by English stonemasons to soft clayey oolite limestones), in geology, the uppermost division of the Jurassic system. The term was proposed by the German geologist A. Oppel in 1856-58. The Malm is subdivided into four stages: Callovian, Oxfordian, Kimmeridgian, and Upper Volgian (the last is called the Portlandian or Tithonian in different countries). A number of West European geologists classify the Callovian in the Middle Jurassic. The accumulation of marine deposits in the Malm was associated with a vast transgression. Limestone and flysch strata are especially typical of the Malm. In the USSR it is extensively developed on the Eastern European Platform, in Western Siberia, the Caucasus, the Crimea, and the Pamirs.

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

malm

1. Earth containing a considerable quantity of chalk in fine particles; a calcareous loam.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
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Ericsson's manager in China, Jan Malm, says that an increased number of competitors should lead to faster development of the Chinese telecomms market, including increased investment in infrastructure and networks.
"China is one of the world's fastest growing telecommunications markets, and Ericsson is pleased to further strengthen our market leadership in China through this cooperation with China Unicom in CDMA, which also laid a solid foundation for the migration to 3G," said Jan Malm, president of Ericsson (China) Company Ltd.