scholarly journals Geology of Flat River, Glacier Lake, and Wrigley Lake map-areas, District of Mackenzie and Yukon Territory, Part 1: general geology, structural geology, and economic geology

1973 ◽  
Author(s):  
H Gabrielse ◽  
S L Blusson ◽  
J A Roddick
Keyword(s):  
Structural Geology ◽  
Economic Geology ◽  
Yukon Territory ◽  
General Geology

scholarly journals The geology of the Breckenridge, Colorado District

1916 ◽  
Author(s):  
◽  
Edgar Wesley Owen
Keyword(s):  
Structural Geology ◽  
Economic Geology ◽  
Good Deal ◽  
Considerable Extent ◽  
The Other ◽  
Mining District ◽  
University Of Missouri ◽  
Igneous Intrusions ◽  
Southern Half ◽  
The University

Text from page 1: "The work used as a basis for this report was done during a part of the Summer of I9I5 in connection with a geologic investigation carried on by a party from the University of Missouri, in charge of Prof. W. A. Tarr. The work included the mapping of the areal geology of the southern half of the Breckenridge, Colorado, mining district and a study of the structural geology of the region. The different igneous intrusions were studied, both as to the character of their rocks and their relation to and effect on the other rocks of the area. A good deal of time was devoted to the study of the economic geology and to the physiography of the district, with special emphasis on the processes and principles involved in each case. The glacial deposits and the part the ice played in developing the physiography of the region were studied to a considerable extent."

scholarly journals Geological heritage potential of Tamgiang - Bachma area, Thua Thien Hue province

2020 ◽  
Vol 61 (2) ◽  
pp. 10-21
Author(s):  
Lan Quang Vu ◽  
Dung Tien Nguyen ◽  
Khang Quang Luong ◽  
Phuong Quang Tran ◽  
Quyen Van Hoang ◽  
...  
Keyword(s):  
Structural Geology ◽  
Economic Geology ◽  
Geological Heritage ◽  
Geological History

Tamgiang-Bachma area (about 1600km2) is located in Thuathienhue province, which has many outstanding values comprising geological heritages. The results show that the area has high geodiversity. Within the area, 115 geosites have been established and they can be classified into 8 groups as follows: (1) Paleontology, (2) geomorphology and landscape, (3) paleoenvironment, (4) rocky, (5) stratigraphy, (6) economic geology, (7) structural geology, and (8) geological history. The Geological heritage can initially be divided into 3 categories, including: (a) International (5 geosites), (b) National (41 geosites), and (c) Local (69 geosites). In particular, the Tam Giang-Cau Hai largoon, the sandbars covering outside of largoon and Bach Ma Mountain are considered as unique areas of geo-diversity are highly evaluated as importantce for sience, education and geotourism.

scholarly journals Preliminary account of the geology of the Kvanefjeld Area of the Ilímaussaq Intrusion, South Greenland

1969 ◽  
Vol 18 ◽  
pp. 1-40
Author(s):  
H Sørensen ◽  
J Hansen ◽  
E Bondesen
Keyword(s):  
Structural Geology ◽  
Special Reference ◽  
Economic Geology ◽  
Detailed Examination ◽  
Coarse Grained ◽  
Widespread Occurrence ◽  
Fine Grained ◽  
Preliminary Account ◽  
Drill Holes ◽  
Basaltic Lavas

The Kvanefjeld area is situated in the northernmost part of the nimaussaq intrusion. The area represents a section through the roof zone of this intrusion. The roof is composed of sandstone, basaltic lavas, sheets of gabbro and dykes of dolerite and trachyte. Large masses of anorthosite are also found in the roof zone, The oldest members of the intrusion are augite syenite and alkali syenite which together with large masses of naujaite (poikilitic sodalite syenite) are enclosed in various types of fine-grained lujavrite. The lujavrite also intrudes the lavas of the roof. The bodies and veins of lujavrite are mainly located in zones of deformation in the rocks of the roof zone. The lavas of the roof are strongly altered in contact with the lujavrite and are locally enriched in epistolite-murmanite minerals. The latest member of the intrusion is a medium- to coarsegrained lujavrite which forms sheets and veins in most of the abovementioned rocks. The earlier fine-grained lujavrites and the contactmetasomatized lavas have concentrations of steenstrupine, monazite and thorite (?) in contact with the medium- to coarse-grained lujavrite and may contain up to 0.3 % U and three to four times this amount of thorium. This mineralization has been studied by mineralogical, geochemical and radiometric methods and in a number of drill holes. Analcime-rich veins rich in niobium and beryllium minerals are of widespread occurrence. The present paper gives a preliminary account of the geology of this region with special reference to the structural geology. A detailed examination of the economic geology of the Kvanefjeld area is currently being undertaken.

Structural Geology: A Quantitative Introduction

2020 ◽  
Author(s):  
David D. Pollard ◽  
Stephen J. Martel
Keyword(s):  
Structural Geology
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