| 31. | Southern California sits on blind thrust faults, experts say.
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| 32. | It is " the poster child of blind thrust faults underneath Los Angeles, " he said.
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| 33. | Blind thrust faults produce quakes when one side pushes upward but does not break the surface.
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| 34. | Thrust faults typically form ramps, flats and fault-bend ( hanging wall and foot wall ) folds.
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| 35. | The western margin area is bound by synclines and reverse thrusts faults and is structurally complex.
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| 36. | The PTZ also displays blind thrust faults and folds ( essentially buried folds and faults ).
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| 37. | Thrust faults are especially scary because many are unseen, concealed beneath mountains of dirt and rock.
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| 38. | The 24-mile blind thrust fault, which runs from Huntington Beach to Dana Point, was discovered in March.
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| 39. | The fault zone contains older ( Tertiary ) mylonites, showing it was a ductile compressive thrust fault.
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| 40. | The Palaeozoic basement is traversed by thrust faults more or less parallel to the north-south structural grain.
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