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Honduras Geology March, 1997, Edition 1.3
SAN FRANCISCO DE BECERRA, HONDURAS 1:50,000
| Age/Edad |
Unit/ Unidad |
Descripción |
Description |
| Cenozoico |
Cuaternario |
Qal |
|
Aluvium - generally sands, gravels, and occassional pebbles
of schist, standstone, or quartz. |
| Qt |
|
Terraces - stratified levels of floodplain deposits of predominantly
sands, gravels and pebbles. |
| Terciario |
Tv |
|
Volcanics - crystal lithic breccias, lithic airfall tuffs, and densely
welded pyroclastics. |
| Mesozoico |
Cretacico |
|
Grupo Valle de Angeles |
Valle de Angeles Group |
| Kva |
|
Redbed siliclastic strata primarily a quartz pebble conglomerate;
some sandstone and schist clasts present, as well as large fossiliferous
limestone pebbles. Cement is hematite and silica. |
| Jurasico |
|
Grupo Honduras |
Honduras Group |
| Jaf |
|
Agua Fria Formation - Fine grain, thin bedded tan sandstone with interbedded
dark shales, dark shales with interbedded sandstones, and massive sandstones;
quartz veining common; deformed metasediments and quartzites are also common. |
| Paleozoico |
|
Esquisto Cacaguapa |
Cacaguapa Schist |
| csp |
|
Primarily phyllitic schists, graphic and sericitic schists are also
present; thick quartz veins along foliation is common; occassional large
(1 cm) pyrite clasts present; large bodies of quartzite are rare. |
|
|
|
Rocas Instrusivas |
Intrusive Rocks |
|
|
i |
|
The metagranite consists of altered biotite, quartz, and feldspar;
quartz veining is present. |
|
|
i2 |
|
The diorite contains large phenocrysts of hornblende in addition to
the feldspar matrix; quartz veining is present. |
|
|
|
|
|
Fuente/Source: Michael J. Kozuch, 1989, Geology of the San Francisco
de Becerra, Honduras, Central America unpublished report, Instituto Geografico
Nacional, Tegucigalpa, Honduras
Return to Contents of Honduras Geology. Return
to stratigraphic map index.
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