High Stands of Quaternary Sea Level Along the Chilean Coast
Humberto Fuenzalida, V., Ronald Cooke, Roland Paskoff, Kenneth Segerstrom, Wolfgang Weischet, 1965. "High Stands of Quaternary Sea Level Along the Chilean Coast", International Studies on the Quaternary: Papers Prepared on the Occasion of the VII Congress of the International Association for Quaternary Research Boulder, Colorado, 1965, H. E. Wright, Jr., David G. Frey
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Marine terraces partly cut in bedrock and partly filled or veneered with clastic deposits extend along much of the Chilean coast, particularly between the 23rd and 40th parallels. The highest terrace, about 250–400 m above present sea level in central and northern Chile, and 170–200 m above the sea in southern Chile, is probably Pliocene. Other terraces, at 150–240 m, 80–130 m, 30–40 m in central and northern Chile, and at 70 m, 20–38 m, 8–10 m in southern Chile, are Pleistocene. The most extensive and best preserved terrace is the one at 80–130 m. There are several lower terraces of Recent age.
Eustatic sea-level changes have been strongly modified by tectonic movements. During the Quaternary, epeirogenetic uplift has been dominant north of the 40th parallel, whereas sinking of the coast has generally prevailed farther south. Late movement of fault blocks has displaced terraces as much as 40–50 m locally.