Guadalupe Group | |
---|---|
Stratigraphic range: Campanian-Maastrichtian ~ | |
Type | Geological group |
Sub-units | Arenisca Labor-Tierna Plaeners Arenisca Dura |
Underlies | Guaduas Formation |
Overlies | Villeta Group Conejo Fm. & Chipaque Fm. |
Lithology | |
Primary | Sandstone, shale |
Other | Salt (allochthonous) |
Location | |
Coordinates | 4°35′31″N 74°03′15″W / 4.59194°N 74.05417°W |
Region | Altiplano Cundiboyacense Eastern Ranges, Andes |
Country | Colombia |
Type section | |
Named for | Guadalupe Hill |
Named by | Pérez & Salazar |
Year defined | 1978 |
Coordinates | 4°35′31″N 74°03′15″W / 4.59194°N 74.05417°W |
Region | Cundinamarca, Boyacá |
Country | Colombia |
Thickness at type section | 750 metres (2,460 ft) |
Paleogeography of Northern South America 65 Ma, by Ron Blakey |
The Guadalupe Group (Spanish: Grupo Guadalupe, K2G, Ksg) is a geological group of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The group, a sequence of shales and sandstones, is subdivided into three formations; Arenisca Dura, Plaeners and Arenisca Labor-Tierna, and dates to the Late Cretaceous period; Campanian-Maastrichtian epochs and at its type section has a thickness of 750 metres (2,460 ft).