Caleta Herradura Formation

Caleta Herradura Formation
Stratigraphic range: Late Miocene-Pliocene (Montehermosan)
TypeGeological formation
UnderliesLa Portada Formation
OverliesJorgino Formation
Thickness380 m (1,250 ft)
Lithology
PrimarySandstone, sandy mudstone, breccia, conglomerate
OtherDiatomite
Location
Coordinates23°24′S 70°30′W / 23.4°S 70.5°W / -23.4; -70.5
Approximate paleocoordinates23°30′S 69°48′W / 23.5°S 69.8°W / -23.5; -69.8
RegionAntofagasta Region
Country Chile
ExtentMejillones Peninsula
Type section
Named forCaleta Herradura Chica
Caleta Herradura Formation is located in Chile
Caleta Herradura Formation
Caleta Herradura Formation (Chile)

Caleta Herradura Formation (Spanish: Formación Caleta Herradura) is a geologic formation of Late Miocene (Montehermosan) age, cropping out on the Mejillones Peninsula in northern Chile. The erosion at the Coastal Cliff of northern Chile have created particularly good exposures of Caleta Herradura Formation. The formation deposited in a half graben within Mejillones Peninsula. The formation rests nonconformably on the Jorgino Formation.[1]

  1. ^ Di Celma, Claudio; Cantalamessa, Gino (2007). "Sedimentology and high-frequency sequence stratigraphy of a forearc extensional basin: The Miocene Caleta Herradura Formation, Mejillones Peninsula, northern Chile". Sedimentary Geology. 198 (1–2): 29–52. Bibcode:2007SedG..198...29D. doi:10.1016/j.sedgeo.2006.11.003.