... represents an important structure formed within the ESZ along the Putumayo-Oriente basin (Figure  3c ). The Caquetá arch shows geomorphologic expression at the surface, especially along its eastern flank, where it is marked by observable surface lineaments that control the direction of important rivers...

.... 2004 ). Pollen assemblages in Pantano de Mónica (middle Caquetá River in Colombia), a marsh not strongly influenced by river flooding dynamics, were also dominated by arboreal taxa and had scarce Poaceae (Behling et al. 1999 ). These differences could also be explained by distinct pollen dispersal...

... standpoint, and the contrast is very sharp between the compressed folds of the Eastern Cordillera and the enormous block of crystalline and Paleozoic rocks, which extend from Magdalena River to Cauca River. De Böckh arrives at a similar interpretation when he admits that “parts of the Central Cordillera...

... .—During 1949, the Council continued exploration in the Paleozoic sedimentary basin of the Amazon ( Fig. 4 ). One seismic crew operated on the island of Marajo detailing gravity anomalies. A second crew was active in the western part of the basin, working the area from the mouth of the Tapajos River...

... and towns. Llanos Province .—East of the Cordillera Oriental lie the vast low grassy plains of eastern Colombia. Several large rivers and innumerable small streams flow eastward and southeastward into the Orinoco and Amazon drainage. The elevation of this region is about 700 feet above sea-level...

... about ~ inch. Felt by many in Denver" (W.K. Cloud). Magnitude 3.3 (GOL), 4.3 (CGS). Central Alaska, February 6, 1967, 14h48m40.1s, 64.5°N, 147.4°W, 'focal depth about 53 km (USCGS). "Felt information received indicates that the maximum intensity occurred near the Salcha and Tanana river area. Several...

... to 1.5 Ga helps establish a spatial connection between the northern Garzon Massif and rocks of the Vaupés Belt that were previously described only from subsurface samples of foreland basement, the Serranía de la Macarena, and basement exposures farther east along the Caquetá and Vaupés rivers ( Fig. 9A...

... stations about May 30 and completed the season’s work about September 1, making a total of 9 party months of work. Party No. 1 worked as two units. The first unit traversed the Chandler River through the foothills southwest of Umiat by boat for re-study and resampling of this area. This area is underlain...

.... The principal tribes of the Indian population are: Jumbos living along the Napo and Bobonaza rivers; Jibaroz, gathered in small warfaring tribes south of the Pastaza River; Aucas, savages with a markedly hostile attitude toward any invader of their territory, between the Napo, Curaray, and Arajuno rivers...

... Ordovícico y geología de los afloramientos del río Venado (norte del departamento del Huila) [Early Ordovician graptolite and geology of the outcrops of Venado River (Huila region)] . Boletín de Geología UIS . 30 ( 1 ): 9 – 19 . Spanish with English abstract. Ottone EG , Toro BA , Waisfeld...

... in operation its plant having an annual capacity of 20,000 tons of vinylchloride and 15,000 tons of polyvinyl chloride. Fig. 11 —Colombia, 1971 exploratory wells, Llanos basin. Fig. 12 —Colombia, 1971 exploratory wells, Caquetá basin. Fig. 13 —Colombia, 1971 exploratory wells...

... is also very abundant in the basal interval of the Mariñame section ( Salamanca et al. 2016 ), which is an outcrop located in the Caquetá River (Colombia) deposited between 17.7 and 16.1 Ma. Similar to Gb-1, M. maristellae in Mariñame section is accompanied by low abundances of Botryococcus...

..., vegetation history and human impact. Thomas and Lex Wijmstra (1932–2004) developed new research in the valley of the Dinkel River aiming to further improve the understanding of environmental, climate and vegetation change. Long profiles over tens of metres were made to be able to interpret stratigraphical...

.... The Amazon clay (AMZ) was collected near Araracuara, in the northwest Colombian Amazon, within the basin of the Caqueta River. This clay was chosen for study because it is used as a healing clay by members of the Uitoto tribe, an indigenous culture which uses the clay for soothing intestinal discomfort...

... was carried out by one or more companies in nearly every one of the important sedimentary basins, including the Magdalena River Valley, the Barco sector of the Lake Maracaibo basin, the Caribbean coastal region, the Llanos plains east of the Andes, the Caqueta-Putumayo region along the Peruvian frontier...

..., and a scholarship for High Level Talent Formation from this fund. We are also grateful to Vaughn Bryant and Enrique Moreno for helpful suggestions and valuable critiques. References Behling H. Berrío J.C. Hooghiemstra H. 1999 . Late Quaternary pollen records from the middle Caquetá river...

... was carried out in 18 party-months and distribution of the survey was in offshore areas as follows: 7,243 km at the mouth of the Amazon River; 2,085 km, Barreirinhas; 768 km, Sergipe-Alagoas; 4,961 km, Bahia-Espírito Santo; 1,251 km, Campos; 4,679 km, Santos; and 2,443 km, Pelotas. Refraction profiles...

... was essentially a geocratic period in South America. Beds of this age are scarce in the Andean region north of Perú, being known only in the Eastern Cordillera of Colombia between western Caquetá and Cundinamarca. They begin with continental deposits (Pipiral beds) bearing plant remains ( Schuchert, 1935...

... between the Amazon River (between Mata-matá Creek and the Amacayacu River) in the south and the Cotuhé River (between Pamaté Creek and Lorena Channel) in the north, and from Cabimas creek in the west to the Purité River in the eastern (Lleras et al. 2005 ). All plants with diameter at breast height...