Folds in otherwise horizontal sedimentary strata

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Unformatted text preview: ge, step-like folds in otherwise horizontal sedimentary strata horizontal Monoclines seem to occur as sedimentary layers have Monoclines been folded over a large faulted block of underlying rock rock Anticlines and Synclines Anticlines Concept Check Concept What is a syncline? A down fold or trough Faults Faults Faults – fractures in the crust along which movement has taken place has The major types of faults are normal faults, reverse The faults, thrust faults, and strike-slip faults faults, Normal fault – occurs when the hanging wall block moves down relative to the footwall block (result in the lengthening of the crust) lengthening Reverse fault – the hanging wall block moves up relative to the footwall block relative Thrust faults – reverse faults with dips less than 45º (results in the shortening of the rocks) (results Strike-slip faults – movement is horizontal and parallel to the trend, or strike of the fault surface (caused by shear stress) (caused Normal Fault Normal Reverse Fault Reverse Thrust Fault Thrust Strike-Slip Fault Strike-Slip Concept Check Concept What are the major types of faults? Normal, reverse, thrust, and strike-slip Assignment Assignment Read Chapter 11, Section 1 (pg. 308-313) Do Section 11.1 Assessment #1-8 (pg. 313) Print out “Exploration Lab 11 - Investigating Print Anticlines and Synclines” Anticlines...
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This note was uploaded on 06/03/2013 for the course MATHS laplace tr taught by Professor John during the Winter '12 term at Aguilar Junior-senior High School.

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