| Cenozoico |
Cuaternario
|
Qal
|
|
Qal, planicies de inundación y depositos de cauce |
Qal, Floodplains and channel deposits |
|
QTt
|
|
QTt, Depósitos de Terraza antiguos y recientes, localmente tobaceos. |
QTt, Ancient and recent terrace deposits, locally tuff-bearing. |
|
Qb
|
|
Qb, Coladas y diques alimentadores de basalto de olivino. |
Qb, Olivine basalt flows and feeder dikes |
|
Terciario
|
|
|
Grupo Padre Miguel
|
Padre Miguel Group
|
|
Tpm
|
|
Tpm, ignimbritas riolitas a daciticas y sedimentos volcáno-genéticos. |
Tpm, Rhyolitic to dacitic ignimbrites and volcano-genetic sediments. |
|
Tpmt
|
Tpmt, Miembro tenampua; sedimentos volcanogenéticos removidos
en agua. |
Tpmt, Tenampua member; water transported volcanogenetic sediments |
|
Tpmi
|
Tpmi, Secuncia ignimbrita riolita basal |
Tpmi, Basal rhyolitic ignimbrite sequence |
|
|
Formación Matagalpa
|
Matagalpa Formation
|
|
Tm
|
|
Tm, Coladas de andesita traquítica; altamente fracturada y localmente
silicificada. |
Tm, Trachytic andesite flows; high fractured and locally silicified. |
| Mesozoico |
Cretácico
|
|
|
Grupo Valle de Angeles
|
Valle de Angeles Group
|
|
Kva
|
|
Kva, Limolita y lodolita con menos arenisca y conglomerado rico en
pedernal. |
Kva, Siltstone and mudstone with minor snadstones and chert rich conglomerates. |
|
Kvae
|
|
Kvae, Formación esquías, caliza micrítica gris
claro con capas locales de ostracodos. |
Kvae, Esquías Formation, light gray micritic limestone with
local ostracode beds. |
|
Kva
|
|
|
|
|
|
Formación Atima
|
Atima Formation
|
|
Ka
|
|
Ka, Caliza micrítica a margosa de color gris claro a oscuro. |
Ka, light to dark gray micritic to marly limestone. |
|
Kas
|
|
Kas, Miembro de argilita y limolita de color pardo a amarillo. |
Kas, Grayish brown to yellow shale and siltstone member. |
|
Ka
|
|
|
|
| Jurásico |
|
|
Formación Todos Santos
|
Todos Santos Formation
|
|
JKts
|
|
JKts, Conglomerado rico en clásticos metamórficos, con
menos arenisca, limolita y limolita calcárea. |
JKts, Conglomerates rich in metamorphic clasts with minor amounts of
sanstone, siltstone and calcareous siltstone. |
|
|
|
|
Rocas Intrusivas
|
Intrusive Rocks
|
|
|
|
r
|
Dique riolitica con fenocristales de cuarzo y sanidino con matriz fracurada
y recristalizada |
Rhyolitic dikes with fenocrysts of quartz and sanidine with a fractured
and recrystalized matrix. |
|
|
|
a
|
Dique andesiticos con plagioclasa, augita-hiperstena, con matriz de
traquítica |
Aitic dikes with plagioclase and augite-hyperstene with a trachyte
matrix |
|
|
|
|
Complejo Intrusivo Santa Clara
|
Santa Clara Intrusive Complex
|
|
|
d
|
|
Diorita santa clara; diorita de plagioclasa-augita, alterada hidrothermaimente
de probable edad cretácico superior o terciario inferior. |
Santa Clara diorite; plagioclase-augite diorite, hydrothermally altered
and probably of upper Cretaceous to lower Tertiary age. |
|
|
sh
|
|
Skarn (tactita) y/o hornsfels. |
Skarn (tactite) and/or hornsfels. |
|
|
fe
|
|
Magnetita masiva y/o hematita |
Massive magnetite and/or hematite. |
|
|
|
|
Gabro El Boquerón
|
El Boquerón Gabbro
|
|
|
gb
|
|
gabro de plagioclasa-augita e hiperstena de textura o(a)fítica
gruesa a fina de edad cretácico superior o probable terciario inferior. |
Plagioclase-augite and hyperstene gabbro with coarse to fine aphanitic
texture and probably of upper Cretaceous to lower Tertiary age. |
