| 31. | The gneiss basement rocks project through the shallow waters to form small islands in the Inlet.
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| 32. | Working on local Precambrian basement rocks, Sederholm instigated a igneous magma into metamorphic rocks at depth.
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| 33. | The area is composed of a well defined ridge of silicified brown sandstone overlaying the basement rock.
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| 34. | The quartzite, which lies unconformably on gneissic basement rock, has been analyzed for traces of Precambrian life.
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| 35. | The islands are of volcanic origin with basement rocks forming between the late Cretaceous and early Eocene.
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| 36. | In the structure, metamorphic basement rocks and regionally flat lying sedimentary rocks are uplifted and intensely deformed.
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| 37. | South of the zone, basement rocks of the Austroalpine and Penninic nappes form the Central Eastern Alps.
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| 38. | The falls are 120 feet ( 36 meters ) in height and tumble over basement rock of granite.
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| 39. | All basement rocks beneath the Canterbury Region belong to the Torlesse Composite ( Rakaia and Pahau ) Terrane.
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| 40. | The Halsn�y Basement Rock consists of Precambrian rock with elements of gneiss of both sedimentary and magmatic origin.
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