75°10'W
75°10'W
75°20'W
75°20'W
75°30'W
75°30'W
7°20'N7°20'N
7°10'N7°10'N
1 2 3 4 5 6 7 8 9
H
G
F
E
D
C
B
A
1.280. 1.280.
1.285. 1.285.
1.290. 1.290.
1.295. 1.295.
1.300. 1.300.
1.305. 1.305.
1.310. 1.310.
1.315. 1.315.
835.
835.
840.
840.
845.
845.
850.
850.
855.
855.
860.
860.
865.
865.
870.
870.
875.
875.
880.
880.
REPÚBLICA DE COLOMBIA - Departamento de Antioquia PLANCHA 105 - Valdivia
INDICE DE LOCALIZACIÓN
Escala 1: 100.000
©1975 - INGEOMINAS
Base cartográfica tomada de las planchas a escala 1:100.000 del IGAC - 2008Proyección Conforme de Gauss
DATUM MAGNA SIRGASORIGEN EN LA ZONA BOGOTÁ
Coordenadas Geográficas: 4°35'46,3215'' N, 74°04'39.0285'' WCoordenadas Planas: N = 1'000.000, E = 1'000.000
PLANCHA 105 - Valdivia
949392
117
106
116
105
115
104
Por:
Jairo Álvarez A., Héctor Rico H., Hernán Vásquez, INGEOMINAS,en colaboración con Robert B. Hall y Lawrence V. Blade,
U.S. Geological Survey
835.
000
m.E
Qal
ALLUVIUM Stream - valley deposits, mostlyunconsolidadted poorly sorted polymictgravel; locally gold-bearing
T
UNDIFFERENTIATED CLASTIC SEDIMENTS
Moderately well consolidated but friable
local lignite bedssandstone, conglomerate, mudstone, and shale;
Pnp
MICACEOUS GNEISS
Gray - quartz-feldsparmica paragneiss, locallywith graphite flakes and garnet. The oldest
(Cambrian (?)-Silurian (?) but a Precambrianunit on the map, probably early Paleozoic
age is possible
Tal
Pa
AMPHIBOLITE
Elongate bodies of uncertain origin. May includepara-amphibolite as well as orthoamphibolite
ALLUVIUM Remnants of stream-channeldeposits, poorly to moderately well consoli-
dated, preserved on upland terraces; locallygold-bearing
Tap
ANDESITE PORPHYRY - Andesine phenocrystsin felty groundmass; single hypabyssal intrusivelens along Romeral Fault
Kat
FELSIC TONALITE - Light-gray medium-grainedbiotite tonalite
KaKsh
LA SOLEDAD FORMATION
Ksh, Argillite-shale facies. Dark-gray very fine
argillite; local breccia layers may be turbiditesgrained finey laminated quartzose shale and
Ka, Arenite facies. Basal unit of gray arkosic
in the argillite-shale faciesquartz-pebble and quartz-cobble conglomerate
Kg
MAFIC INTRUSIVE ROCKS
Kg, Metagabbro. Medium-to fine-grined green-stone, locally foliated; composed of stronglysaussuritized calcic plagioclase and uralitizedpyroxene
SERPENTINITE
Ultramafic bodies, mostly serpentinized, believedprobably contemporaneous with Lower Cretaceousmetagabbro; locally contains asbestos
Krv
METABASALT - Massive submarine basalt flowsaltered to greenstone; sodic feldspar common(spilitic?)
PALEOZOIC INTRUSIVE ROCKS
Pmt, Puqui Metatonalite. Medium -to dark-gray rock with composition and texture oftonalite, but locally containing accessorygarnet, hypersthene, sillimanite, and cordierite;associated with micaceous pargneiss. K-Arage 239+7 m.y._
Pei
VALDIVIA GROUP
Pes, Quartz-sericite schist. Dark-gray to blackfine-grained quartzose schist with very thin
graphite dust pigmentlaminae of sericite, biotite, and chlorite;
Pec, Chlorite-actinolite schist. Medium-todark-grayish green fine-grained schist com-posed mainly of chlorite, actinolite, albite,
and epidote; sphene and magnetite accessoryminerals; manganese oxide stain common onweathered surfaces
Pei, Intercalated schists. Subequally intercalated
Neither type is clearly dominantquartz-sericite and chlorite-actinolite schist.
Pmt Pnm
Pnm, Porphyrobastic adamellite gneiss. Syntec-tonic intrusive dark-gray quartz-feldspar gneisswith large porphyroblasts of orthoclase. Ageuncertain, but possibly contemporancous withPuqui Metatonalite
Pnf, Feldspathic gneiss. Light-to dark-gray me-
mon accessory minerals; local minor acces-rite in darker bands; garnet and graphite com-
sory cordierite and sillimanite
spar-quartz paragneiss with biiotite and chlo-dium-to coarse-grained layered sodic feld-
Pnf
Pes Pec
Ks
ROCAS ESTRATIFICADAS
ROCAS ÍGNEAS
PA
LEO
ZO
ICO
PR
EC
ÁM
BR
ICO
CU
AT
ER
NA
RIO
TE
RC
IAR
IO
Cre
táce
o su
perio
rC
retá
ceo
infe
rior
CR
ET
ÁC
EO
ME
SO
ZO
ICO
CE
NO
ZO
ICO
0 1 2 3 4 5 6 7 8 9 100,5Km
880.
000
m.E
1.280.000 m.N
1.000
2.000
3.000
0
1.000
2.000
3.000
0
AA'
Río
Nec
hí
Alto La Tolda
Fal
la R
omer
al
Río
Cau
ca
PesPnmPeiPes
PeiKgPecPecPmt
PnpPaPaPnpPmtPei
Pnp
Pnp
Pa Pes
Kg
Kat
MetrosMetros
Geología de laPlancha 105
Valdivia
LEYENDA GEOLÓGICA
1. Jairo Álvarez A.
2. Alfredo Andrade M.
Interpretación fotogeológica por Taissir Kassem
INDICE DE PARTICIPACIÓN
74°0
4'3
9,02
85'
' W
4º35'46,3215'' N
3, 8 122, 6, 7 9
5 2, 5, 6 ,7
1 ,12 1, 6
4, 9, 11 9 1
3, 8, 10
3, 8, 9
BASE CARTOGRÁFICA
Área construida
Banco de arena
Drenaje sencillo, canal
Curva de nivel
Carretera pavimentada
Drenaje doble, laguna, cuerpo de agua
CONTACTOS Y FALLAS EN ROCAS METAMÓRFICAS
Falla inferida
Falla definida
Falla cubierta
Foliación inclinada
Lineamiento fotogeológico
Camino, sendero
Carretera sin pavimentar
¹
¸ Diaclasa inclinada
DIACLASAS
Ä Diaclasa vertical
RASGOS GEOMORFOLÓGICOS, RECURSOS NATURALES Y OTROS
3. Alfonso Arias T.
4. Jaime Durán G.
7. Gilberto Guarín C.
8. Darío Mosquera T.
9. Francisco Mosquera M.
MINAS Y MANIFESTACIONES MINERALES
ß Mina activa
Minerales y metales económicos:asb: Asbesto
Transformada a Datum MAGNA SIRGAS2013
Contacto inferido
Minerales metamórficosAp: Andalusita porfiroblásticaC: CordieritaG: GranateSi: Silimanita
Foliación verticalX�
Q
Manifestación mineral
10. Jorge E. Muñoz C.
5. Ricardo Escobar R.
6. Alejandro Gómez P.
11. Alfonso Otero
12. Darío Velásquez H.
ESTRUCTRAS PLEGADAS
F Anticlinal definido
Sinclinal definidoM <> Punto de muestreo para datación radiométrica
7
7
77
7
77
7
77
77
7
7
7
7
7
7
7
7
77
77
7
7
7
7
77 7
77
7
7
77
7
77
7
7
77
7
7
7
1.280.000 m.N
1.320.000 m.N
Aureola de contacto intrusivo! ! ! ! ! ! ! ! ! !
! ! ! ! ! ! ! ! ! !
1.320.000 m.N
880.
000
m.E
835.
000
m.E
Ministerio de Minas y EnergíaServicio Geológico Colombiano
República de Colombia