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Compiled by: Jacques LeBlanc (2021), Stratigraphic Lexicon: The Onshore Cenozoic Sedimentary Formations of The Republic of Panama. Biosis: Biological Systems, vol. 2/1, 1-173. https://doi.org/10.37819/biosis.002.01.0095(or via https://sites.google.com/site/leblancjacques).

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Río Hato Formation
Click to display on map of the Ancient World at:
Río Hato Fm base reconstruction

Río Hato Fm

Period: 
Quaternary

Age Interval: 
Holocene – Recent - Instituto Geografico Nacional (IGN) "Tommy Guardia" (1996)


Province: 
Tonosí & Azuero basin

Type Locality and Naming

It makes its first appearance in Ministerio de Comercio e Industrias (1991) which includes it in the middle of the Aguadulce Gr. It is described as “Conglomerate, sandstones, shales, tuffs, semi-consolidated sandstones, pumice” (APP-B3).

Instituto Geografico Nacional (IGN) "Tommy Guardia" (1996)’s map lists it as the bottom formation within the Aguadulce Gr. The Boca de Chucara Fm having disappeared on this map.

Synonym: Rio Hato Fm; Instituto Geografico Nacional (IGN) "Tommy Guardia" (1996)’s map lists it as the basal formation within the Aguadulce Gr.


Lithology and Thickness


Lithology Pattern: 
Conglomerate


Relationships and Distribution

Lower contact

Boca de Chucara Fm (part of the Aguadulce Gr) in Ministerio de Comercio e Industrias (1991)’s map. It is unclear which formation underlies it in Instituto Geografico Nacional (IGN) "Tommy Guardia" (1996)’s map.

Upper contact

Las Lajas Fm (part of the Aguadulce Gr)

Regional extent

See “Aguadulce Gr”. Occurs in Aguadulce Plain, Coclé province


GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[-80.706,8.356],[-80.623,8.356],[-80.557,8.346],[-80.518,8.341],[-80.483,8.333],[-80.45,8.329],[-80.409,8.321],[-80.387,8.299],[-80.393,8.278],[-80.431,8.258],[-80.457,8.23],[-80.49,8.195],[-80.513,8.166],[-80.542,8.149],[-80.564,8.148],[-80.596,8.156],[-80.642,8.186],[-80.671,8.215],[-80.69,8.247],[-80.699,8.282],[-80.706,8.321],[-80.706,8.356]]]]}}

Fossils


Age 


Age Span: 

    Beginning stage: 
Holocene

    Fraction up in beginning stage: 
0.33

    Beginning date (Ma): 
0.01

    Ending stage: 
Holocene

    Fraction up in the ending stage: 
0.67

    Ending date (Ma):  
0.00

Depositional setting


Depositional pattern:  


Additional Information

References: Instituto Geografico Nacional (IGN) "Tommy Guardia" (1996)


Compiler:  

Jacques LeBlanc (2021), Stratigraphic Lexicon: The Onshore Cenozoic Sedimentary Formations of The Republic of Panama. Biosis: Biological Systems, 2(1), 173 pp. https://doi.org/10.37819/biosis.002.01.0095 (or via https://sites.google.com/site/leblancjacques)