Monte Verde Fm

Period:

Quaternary

Age Interval:

Pleistocene-Holocene, younger than 60,000 Ya) - Morell et al. (2011)

Province:
Burica Peninsula

Type Locality and Naming

Named by Morell et al. (2011).

On the Burica Peninsula - as many as eight laterally extensive marine terraces (Qt1 to QY8) (Figure 046, RIGHT)

Synonym:

Lithology and Thickness

Most terraces are generally composed of 1–3 m thick magnetite‐rich, quartz‐poor, parallel‐laminated sandstones, with occasional lenses of fossiliferous subtidal sands (Figure 114). Locally around Puerto Armuelles, bay fill sediments beneath terrace sands can reach up to ∼10 m in thickness and often contain laterally discontinuous ∼1–3 m conglomeratic gravel bases with well‐rounded andesitic or basaltic cobbles Morell et al. (2011). Lenses of undefined fossil in subtidal sands.

Thickness: Variable from 1 to 10 m.

[Figure 113. Stratigraphic column of the Burica Peninsula showing the position of the Monte Verde Fm. (See also Qt1 to Qt8 in Figure 046, Right). Morell et al. (2011).]

[Figure 114. Photos of marine terraces on Burica Peninsula that make up the Monte Verde Fm showing (a) tread surface of extensive marine terrace Qt4. (b) Close‐up from “a” showing unconformity between underlying mudstones of the Charco Azul Fm and magnetite‐rich marine terrace sands for terrace Qt4. (c) Coastal outcrop of Holocene marine terrace near Pavones, Costa Rica, northwestern Burica Peninsula. (d) Photo showing soil profile within Qt1b, second highest terrace in southern Burica Peninsula. Note the lack of red soil development. (e) Photo showing modern marine platform and wave‐cut notch associated with marine terrace Qt7 on the Costa Rican beach, with view looking south. Morell et al. (2011).]

Lithology Pattern:

Aus Conglomerate

Relationships and Distribution

Lower contact

Armuelles Fm

Upper contact

None

Regional extent

GeoJSON

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Fossils

Age

Age Span:

Beginning stage:

Holocene

Fraction up in beginning stage:

Beginning date (Ma):

0.01

Ending stage:

Holocene

Fraction up in the ending stage:

Ending date (Ma):

0.00

Depositional setting

Depositional pattern:

Additional Information

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)