Geology for Civil Engineers

Geology for Civil Engineers

Language: English

Pages: 0

ISBN: B0037ZEBG4

Format: PDF / Kindle (mobi) / ePub

Geology for Civil Engineers

Language: English

Pages: 0

ISBN: B0037ZEBG4

Format: PDF / Kindle (mobi) / ePub


Science is Golden

Wilderness Medicine (5th Edition)

Spook: Science Tackles the Afterlife

Brave New World

 

 

 

 

 

 

 

 

 

 

 

 

suggesting the truncation of strata. Strike slip faults characteristically give rise to wide zones of breccia and marked erosion hollows (Fig. 3.20). The largest landform of this type in Britain is the Great Glen, which is a few kilometres wide along most of its length and has been gouged to a depth of a few hundred metres by ice. The smaller erosion hollows that would be more of service to a geological surveyor and of interest to the engineer are typically a few metres wide. COLLAPSE STRUCTURES

done to seal fractures against leakage. This latter is best achieved by drilling holes perpendicular to the fractures. Figure 4.17 Layers of sandstone and conglomerate cut by small faults and joints (some of which are small shears) similar, apart from magnitude of displacement, to the faults. (Reproduced by kind permission of Dr Brian Bluck.) 4.4.5 Faults As with all structural surf aces, the orientation of a fault is expressed by its strike and dip. The displacement across a fault is called

this shape or crystal habit is of use in the identification of some minerals. The terms used to describe crystal habit are given in Table 2.3. Table 2.3 Descriptive terms for crystal habit. Individual crystals platy broad, flat crystal tabular elongate crystal which is also flat prismatic crystal is elongated in one direction acicular crystal is very long and needle-like fibrous long crystals—like fibres Crystal aggregates (amorphous minerals often assume this form) dendritic crystals

this shape or crystal habit is of use in the identification of some minerals. The terms used to describe crystal habit are given in Table 2.3. Table 2.3 Descriptive terms for crystal habit. Individual crystals platy broad, flat crystal tabular elongate crystal which is also flat prismatic crystal is elongated in one direction acicular crystal is very long and needle-like fibrous long crystals—like fibres Crystal aggregates (amorphous minerals often assume this form) dendritic crystals

selection. Q. J. Engng Geol . 7 , 181–98. Gray, D.A. et al. 1976. Disposal of highly active, solid radioactive wastes into geological formations—relevant geological criteria for the United Kingdom . Rep. Inst. Geol. Sci. no. 76/12. Hodgson, A.V. and M.D.Gardiner 1971. An investigation of the aquifer potential of the Fell Sandstone of Northumberland. Q. J. Engng Geol . 4 , 91–110. Hubbert, M.K. 1940. The theory of groundwater motion. J. Geol . 48 , 785–944. Jones, G.P. 1971. Management of

Download sample

Download