Caballos Formation
Caballos Formation | |
---|---|
Stratigraphic range: Aptian-Albian ~120–100 Ma PreꞒ Ꞓ O S D C P T J K Pg N | |
Type | Geological formation |
Underlies | Hondita Formation |
Overlies | Yaví & Saldaña Formations |
Thickness | up to 411 m (1,348 ft) |
Lithology | |
Primary | Sandstone, shale, siltstone |
Other | Limestone, coal |
Location | |
Coordinates | 3°49′18.9″N 75°21′22.4″W / 3.821917°N 75.356222°W / 3.821917; -75.356222 |
Region | Caquetá, Huila, Putumayo & Tolima Departments |
Country | Colombia |
Extent | VSM & Caguán-Putumayo Basin Central & Eastern Ranges, Andes |
Type section | |
Named for | Cerro Caballos |
Named by | Corrigan |
Location | Olaya Herrera |
Year defined | 1967 |
Coordinates | 3°49′18.9″N 75°21′22.4″W / 3.821917°N 75.356222°W / 3.821917; -75.356222 |
Approximate paleocoordinates | 2°54′S 47°24′W / 2.9°S 47.4°W / -2.9; -47.4 |
Region | Tolima |
Country | Colombia |
Thickness at type section | 411 m (1,348 ft) |
Paleogeography of Northern South America 105 Ma, by Ron Blakey |
The Caballos Formation (Spanish: Formación Caballos, KI) is a geological formation of the Upper Magdalena Valley (VSM), Caguán-Putumayo Basin, Central and Eastern Ranges of the Colombian Andes. The sandstone and shale formation dates to the Middle Cretaceous period; Aptian to Albian epochs and has a maximum thickness of 411 metres (1,348 ft).
Etymology
The formation was defined and named in 1967 by Corrigan after Cerro Caballos, to the west of Olaya Herrera, Tolima.[1]
Description
Lithologies
The Caballos Formation has a maximum thickness of 411 metres (1,348 ft) in the Quebrada Bambucá and is characterized by a lower sequence of fine to coarse sandstones, of lithic arenite, quartz arenite and feldspar arenite composition, a middle section of fossiliferous black shales and siltstones, intercalated by micritic limestones and coals and very fine sandstones. The upper part of the formation contains conglomerates and glauconitic sandstones.[1]
Stratigraphy and depositional environment
The Caballos Formation in some parts concordantly overlies the Yaví Formation and in other parts rests unconformably on the Saldaña Formation and Ibagué Batholith.[2] The formation is overlain by the Hondita Formation. The age has been estimated to be Aptian to Albian. Stratigraphically, the formation is time equivalent with the Une, Aguardiente, Simijaca, El Peñón, Capotes, Tablazo, Tibú-Mercedes and Pacho Formations.[3] The formation has been deposited in a fluvial to estuarine and shallow marine environment.[4]
The Caballos Formation is a source, reservoir and seal rock in the Upper Magdalena Valley,[5][6] and a source and reservoir rock in the Caguán-Putumayo Basin.[7][8] The Orito and Moqueta Fields of the latter basin produce from Caballos reservoirs.
Fossil content
The formation has provided fossils of Heminautilus etheringtoni,[9] Araucarites sp., Brachyphyllum sp., Cladophlebis sp., and Weichselia sp.,[10] as well as many types of pollen.[11]
Outcrops
The Caballos Formation is apart from its type locality, found in Huila, Tolima and Putumayo Departments.
Regional correlations
Ma | Age | Paleomap | Regional events | Catatumbo | Cordillera | proximal Llanos | distal Llanos | Putumayo | VSM | Environments | Maximum thickness | Petroleum geology | Notes |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0.01 | Holocene | Holocene volcanism Seismic activity | alluvium | Overburden | |||||||||
1 | Pleistocene | Pleistocene volcanism Andean orogeny 3 Glaciations | Guayabo | Soatá Sabana | Necesidad | Guayabo | Gigante Neiva | Alluvial to fluvial (Guayabo) | 550 m (1,800 ft) (Guayabo) | [12][13][14][15] | |||
2.6 | Pliocene | Pliocene volcanism Andean orogeny 3 GABI | Subachoque | ||||||||||
5.3 | Messinian | Andean orogeny 3 Foreland | Marichuela | Caimán | Honda | [14][16] | |||||||
13.5 | Langhian | Regional flooding | León | hiatus | Caja | León | Lacustrine (León) | 400 m (1,300 ft) (León) | Seal | [15][17] | |||
16.2 | Burdigalian | Miocene inundations Andean orogeny 2 | C1 | Carbonera C1 | Ospina | Proximal fluvio-deltaic (C1) | 850 m (2,790 ft) (Carbonera) | Reservoir | [16][15] | ||||
17.3 | C2 | Carbonera C2 | Distal lacustrine-deltaic (C2) | Seal | |||||||||
19 | C3 | Carbonera C3 | Proximal fluvio-deltaic (C3) | Reservoir | |||||||||
21 | Early Miocene | Pebas wetlands | C4 | Carbonera C4 | Barzalosa | Distal fluvio-deltaic (C4) | Seal | ||||||
23 | Late Oligocene | Andean orogeny 1 Foredeep | C5 | Carbonera C5 | Orito | Proximal fluvio-deltaic (C5) | Reservoir | [13][16] | |||||
25 | C6 | Carbonera C6 | Distal fluvio-lacustrine (C6) | Seal | |||||||||
28 | Early Oligocene | C7 | C7 | Pepino | Gualanday | Proximal deltaic-marine (C7) | Reservoir | [13][16][18] | |||||
32 | Oligo-Eocene | C8 | Usme | C8 | onlap | Marine-deltaic (C8) | Seal Source | [18] | |||||
35 | Late Eocene | Mirador | Mirador | Coastal (Mirador) | 240 m (790 ft) (Mirador) | Reservoir | [15][19] | ||||||
40 | Middle Eocene | Regadera | hiatus | ||||||||||
45 | |||||||||||||
50 | Early Eocene | Socha | Los Cuervos | Deltaic (Los Cuervos) | 260 m (850 ft) (Los Cuervos) | Seal Source | [15][19] | ||||||
55 | Late Paleocene | PETM 2000 ppm CO2 | Los Cuervos | Bogotá | Gualanday | ||||||||
60 | Early Paleocene | SALMA | Barco | Guaduas | Barco | Rumiyaco | Fluvial (Barco) | 225 m (738 ft) (Barco) | Reservoir | [12][13][16][15][20] | |||
65 | Maastrichtian | KT extinction | Catatumbo | Guadalupe | Monserrate | Deltaic-fluvial (Guadalupe) | 750 m (2,460 ft) (Guadalupe) | Reservoir | [12][15] | ||||
72 | Campanian | End of rifting | Colón-Mito Juan | [15][21] | |||||||||
83 | Santonian | Villeta/Güagüaquí | |||||||||||
86 | Coniacian | ||||||||||||
89 | Turonian | Cenomanian-Turonian anoxic event | La Luna | Chipaque | Gachetá | hiatus | Restricted marine (all) | 500 m (1,600 ft) (Gachetá) | Source | [12][15][22] | |||
93 | Cenomanian | Rift 2 | |||||||||||
100 | Albian | Une | Une | Caballos | Deltaic (Une) | 500 m (1,600 ft) (Une) | Reservoir | [16][22] | |||||
113 | Aptian | Capacho | Fómeque | Motema | Yaví | Open marine (Fómeque) | 800 m (2,600 ft) (Fómeque) | Source (Fóm) | [13][15][23] | ||||
125 | Barremian | High biodiversity | Aguardiente | Paja | Shallow to open marine (Paja) | 940 m (3,080 ft) (Paja) | Reservoir | [12] | |||||
129 | Hauterivian | Rift 1 | Tibú- Mercedes | Las Juntas | hiatus | Deltaic (Las Juntas) | 910 m (2,990 ft) (Las Juntas) | Reservoir (LJun) | [12] | ||||
133 | Valanginian | Río Negro | Cáqueza Macanal Rosablanca | Restricted marine (Macanal) | 2,935 m (9,629 ft) (Macanal) | Source (Mac) | [13][24] | ||||||
140 | Berriasian | Girón | |||||||||||
145 | Tithonian | Break-up of Pangea | Jordán | Arcabuco | Buenavista Batá | Saldaña | Alluvial, fluvial (Buenavista) | 110 m (360 ft) (Buenavista) | "Jurassic" | [16][25] | |||
150 | Early-Mid Jurassic | Passive margin 2 | La Quinta | Montebel Noreán | hiatus | Coastal tuff (La Quinta) | 100 m (330 ft) (La Quinta) | [26] | |||||
201 | Late Triassic | Mucuchachi | Payandé | [16] | |||||||||
235 | Early Triassic | Pangea | hiatus | "Paleozoic" | |||||||||
250 | Permian | ||||||||||||
300 | Late Carboniferous | Famatinian orogeny | Cerro Neiva () | [27] | |||||||||
340 | Early Carboniferous | Fossil fish Romer's gap | Cuche (355-385) | Farallones () | Deltaic, estuarine (Cuche) | 900 m (3,000 ft) (Cuche) | |||||||
360 | Late Devonian | Passive margin 1 | Río Cachirí (360-419) | Ambicá () | Alluvial-fluvial-reef (Farallones) | 2,400 m (7,900 ft) (Farallones) | [24][28][29][30][31] | ||||||
390 | Early Devonian | High biodiversity | Floresta (387-400) El Tíbet | Shallow marine (Floresta) | 600 m (2,000 ft) (Floresta) | ||||||||
410 | Late Silurian | Silurian mystery | |||||||||||
425 | Early Silurian | hiatus | |||||||||||
440 | Late Ordovician | Rich fauna in Bolivia | San Pedro (450-490) | Duda () | |||||||||
470 | Early Ordovician | First fossils | Busbanzá (>470±22) Chuscales Otengá | Guape () | Río Nevado () | Hígado () | [32][33][34] | ||||||
488 | Late Cambrian | Regional intrusions | Chicamocha (490-515) | Quetame () | Ariarí () | SJ del Guaviare (490-590) | San Isidro () | [35][36] | |||||
515 | Early Cambrian | Cambrian explosion | [34][37] | ||||||||||
542 | Ediacaran | Break-up of Rodinia | pre-Quetame | post-Parguaza | El Barro () | Yellow: allochthonous basement (Chibcha Terrane) Green: autochthonous basement (Río Negro-Juruena Province) | Basement | [38][39] | |||||
600 | Neoproterozoic | Cariri Velhos orogeny | Bucaramanga (600-1400) | pre-Guaviare | [35] | ||||||||
800 | Snowball Earth | [40] | |||||||||||
1000 | Mesoproterozoic | Sunsás orogeny | Ariarí (1000) | La Urraca (1030-1100) | [41][42][43][44] | ||||||||
1300 | Rondônia-Juruá orogeny | pre-Ariarí | Parguaza (1300-1400) | Garzón (1180-1550) | [45] | ||||||||
1400 | pre-Bucaramanga | [46] | |||||||||||
1600 | Paleoproterozoic | Maimachi (1500-1700) | pre-Garzón | [47] | |||||||||
1800 | Tapajós orogeny | Mitú (1800) | [45][47] | ||||||||||
1950 | Transamazonic orogeny | pre-Mitú | [45] | ||||||||||
2200 | Columbia | ||||||||||||
2530 | Archean | Carajas-Imataca orogeny | [45] | ||||||||||
3100 | Kenorland | ||||||||||||
Sources |
- Legend
- group
- important formation
- fossiliferous formation
- minor formation
- (age in Ma)
- proximal Llanos (Medina)[note 1]
- distal Llanos (Saltarin 1A well)[note 2]
See also
- List of fossiliferous stratigraphic units in Colombia
- Geology of the Eastern Hills
- Geology of the Altiplano Cundiboyacense
Notes
References
- ^ a b Velandia et al., 2001, p.53
- ^ Velandia et al., 2001, p.34
- ^ Velandia et al., 2001, p.54
- ^ Villamil, 2012, p.166
- ^ ANH, 2007, p.84
- ^ García González et al., 2009, p.83
- ^ ANH, 2007, p.57
- ^ García González et al., 2009, p.16
- ^ Badouin et al., 2016, p.87
- ^ Monje et al., 2016, p.38
- ^ Los Mangos at Fossilworks.org
- ^ a b c d e f García González et al., 2009, p.27
- ^ a b c d e f García González et al., 2009, p.50
- ^ a b García González et al., 2009, p.85
- ^ a b c d e f g h i j Barrero et al., 2007, p.60
- ^ a b c d e f g h Barrero et al., 2007, p.58
- ^ Plancha 111, 2001, p.29
- ^ a b Plancha 177, 2015, p.39
- ^ a b Plancha 111, 2001, p.26
- ^ Plancha 111, 2001, p.24
- ^ Plancha 111, 2001, p.23
- ^ a b Pulido & Gómez, 2001, p.32
- ^ Pulido & Gómez, 2001, p.30
- ^ a b Pulido & Gómez, 2001, pp.21-26
- ^ Pulido & Gómez, 2001, p.28
- ^ Correa Martínez et al., 2019, p.49
- ^ Plancha 303, 2002, p.27
- ^ Terraza et al., 2008, p.22
- ^ Plancha 229, 2015, pp.46-55
- ^ Plancha 303, 2002, p.26
- ^ Moreno Sánchez et al., 2009, p.53
- ^ Mantilla Figueroa et al., 2015, p.43
- ^ Manosalva Sánchez et al., 2017, p.84
- ^ a b Plancha 303, 2002, p.24
- ^ a b Mantilla Figueroa et al., 2015, p.42
- ^ Arango Mejía et al., 2012, p.25
- ^ Plancha 350, 2011, p.49
- ^ Pulido & Gómez, 2001, pp.17-21
- ^ Plancha 111, 2001, p.13
- ^ Plancha 303, 2002, p.23
- ^ Plancha 348, 2015, p.38
- ^ Planchas 367-414, 2003, p.35
- ^ Toro Toro et al., 2014, p.22
- ^ Plancha 303, 2002, p.21
- ^ a b c d Bonilla et al., 2016, p.19
- ^ Gómez Tapias et al., 2015, p.209
- ^ a b Bonilla et al., 2016, p.22
- ^ a b Duarte et al., 2019
- ^ García González et al., 2009
- ^ Pulido & Gómez, 2001
- ^ García González et al., 2009, p.60
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