Caleta Herradura Formation

Geological 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]

Fossil content

The following fossils have been found in the formation:

Group	Fossils	Notes
Mammals	Balaenopteridae indet., Odontoceti indet., Otariidae indet.	^[2]
Birds	Spheniscus chilensis, Milvago sp., Phalacrocorax sp.	^[2]
Fish	Carcharodon carcharias, Carcharias sp., Carcharhinus sp., Chondrichthyes indet., Myliobatidae indet.	^[2]

References

^ 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.
^ ^a ^b ^c Cuenca del Tiburón at Fossilworks.org

Volcanic provinces	Andean North Central South Austral Caribbean Central Atlantic Paraná and Etendeka
Hotspots	Ascension Noronha hotspot Galápagos Juan Fernández San Felix Trindade

Cretaceous	Baños del Flaco Fm. Cerro Colorado Fm. Chacarilla Fm. Chañarcillo Gp. Coihaique Gp. Divisadero Gp. Dorotea Fm. Hornitos Fm. La Liga Fm. Ñirehuao Fm. Punta del Cobre Fm. Purilactis Gp. Quiriquina Fm. Viñita Fm. Way Gp. Zapata Fm.
Jurassic	Chacarilla Fm. Coihaique Gp. Ibáñez Fm. La Liga Fm. La Negra Fm. Nacientes del Biobío Fm. Nacientes del Teno Fm. Pan de Azúcar Fm. Tobífera Fm.
Triassic	Canto del Agua Fm. Choiyoi Gp. Panguipulli Fm. Santa Juana Fm. Tralcán Fm.