4,000 to 6,000 year old Brazos clays exposed at Rattlesnake Point. Overlain by modern oyster storm bed.
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Close up of Brazos clay showing brecciated texture with root structures indicating that this is an ancient soil horizon. Overlain by modern oyster storm bed.
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Calcareous pedogenic nodules weathered from Brazos clay and admixed with younger oyster fragments.
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Ancient Brazos - Christmas Point
Ancient Brazos delta plain deposits are exposed at Christmas Point and at the southern end of Rattlesnake Point. Because they lie less than 3 feet beneath the bay bottom, excavated fragments of this clay can be found in dredge spoil piles, particularly those along the old intracoastal waterway in Drum Bay.
Ancient Brazos delta plain deposits are exposed at Christmas Point and at the southern end of Rattlesnake Point. Because they lie less than 3 feet beneath the bay bottom, excavated fragments of this clay can be found in dredge spoil piles, particularly those along the old intracoastal waterway in Drum Bay.