scholarly journals United States Geographical and Geological Survey of the Rocky Mountain Region; Tribes of the Extreme North-West

Nature ◽  
1878 ◽  
Vol 18 (450) ◽  
pp. 165-166
Author(s):  
A. H. SAYCE
Keyword(s):  
United States ◽  
Rocky Mountain ◽  
Mountain Region ◽  
Geological Survey ◽  
North West ◽  
Rocky Mountain Region ◽  
Extreme North

scholarly journals IV.—Comparison of the Principal Forms of Dinosauria of Europe and America

1889 ◽  
Vol 6 (5) ◽  
pp. 204-210 ◽  
Author(s):  
O. C. Marsh
Keyword(s):  
United States ◽  
Rocky Mountain ◽  
The United States ◽  
Mountain Region ◽  
Geological Survey ◽  
Entire Group ◽  
United States Geological Survey ◽  
The Past ◽  
Rocky Mountain Region

The remains of Dinosaurian reptiles are very abundant in the Rocky Mountain region, especially in deposits of Jurassic age, and during the past ten years the author has made extensive collections of these fossils, as a basis for investigating the entire group. The results of this work will be included in several volumes, two of which are now well advanced towards completion, and will soon be published by the United States Geological Survey.In the study of these reptiles, it was necessary to examine the European forms, and the author has now seen nearly every known specimen of importance. The object of the present paper is to give, in few words, some of the more obvious results of a comparison between these forms and those of America which he has investigated.

scholarly journals VI.—Laccolites

1881 ◽  
Vol 8 (3) ◽  
pp. 134-136
Author(s):  
G. H. Kinahan
Keyword(s):  
Rocky Mountain ◽  
The Other ◽  
Mountain Region ◽  
Geological Survey ◽  
Lower Horizon ◽  
The Earth ◽  
Other Hand ◽  
Rocky Mountain Region ◽  
Henry Mountains ◽  
The U.S

In the Report on the Geology of the Henry Mountains, Rocky Mountain Region, Mr. G. K. Gilbert, of the U.S. Geographical and Geological Survey, points out that many of the intrusions of eruptive rocks now exposed had a deep-seated origin; the molten rock having filled vacancies in the rocks, and never coming to the surface until they were exposed by denudation or by faults. To quote our author, “The lava … instead of rising through all the beds of the earth's crust, stopped at a lower horizon, insinuated itself between two strata, and opened for itself a chamber by lifting all the superior beds. For these masses of eruptive rocks, Gilbert proposes the name laccolite (Gr. lakkos cistern, and lithos stone). In the Cos. Wexford and Wioklow some of the protrusions of eruptive rocks are entitled to this name, the rocks having congealed in cisterns below the surface of the earth; there are, however, some marked differences between them and the laccolites of the Henry Mountains. The latter were intruded into nearly horizontal strata, the laccolites only consist of one kind of rock, while the adjoining rocks seem to have been very little altered. But the Wexford and Wicklow laccolites, on the other hand, were intruded into highly disturbed strata, they are made up of a variety of rocks, and always the aquo-igneous action due to their intrusion—‘ baked ’ or altered, a greater or less thickness of rocks about them.

Intestinal Infections in Humans in the Rocky Mountain Region, United States

2010 ◽  
Vol 96 (1) ◽  
pp. 194-196 ◽  
Author(s):  
Cynthia Church ◽  
Andrea Neill ◽  
Anna M. Schotthoefer
Keyword(s):  
United States ◽  
Rocky Mountain ◽  
Mountain Region ◽  
Rocky Mountain Region ◽  
Intestinal Infections

HIBERNATION PECULIARITIES OF PLATYSAMIA GLOVERI STR. (SATURNIIDAE, LEPIDOPTERA)

1940 ◽  
Vol 72 (5) ◽  
pp. 89-90
Author(s):  
James B. Duncan
Keyword(s):  
United States ◽  
Winter Season ◽  
Rocky Mountain ◽  
Mountain Region ◽  
Western United States ◽  
Rocky Mountain Region ◽  
Varying Length

Recent observations of Platysamia gloveri Str. have brought out some interesting facts on the varying length of hibernation periods. The gloveri moth is restricted almost entirely to the Rocky Mountain Region of the western United States. This implies in general, therefore, the ability to withstand subzero weather throughout the lengthy winter season.

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