...James A. Beer; Teresa E. Jordan Abstract In the Bermejo basin of western Argentina, semi-arid, sandy, low-gradient sedimentation has accompanied deformation of the Frontal Cordillera and Precordillera since the mid-Miocene. Utilizing the precise geochronology established for strata at Sierra de...

....— A) Google Earth ™ satellite image (April 2013) of the southern Chaco foreland basin in northern Argentina. Three distinct hinterland zones route sediment into the foreland via the Río Bermejo megafan. B) Inset map marks the position of the Chaco in central South America (red box). C) Foreland depozones...

...Gwang H. Lee; John P. Castagna Abstract We identified a previously unknown carbonate buildup in the Cretaceous M1 limestone in the Bermejo field, northwestern Oriente Basin of Ecuador. Thinner carbonate builduplike features are also seen in the deeper A limestone, which has produced small volumes...

...Figure 2. (A) Detrital zircon U-Pb data from the Huaco section of the Bermejo Basin in the southern Central Andes (see Fig. 1 for location) showing primarily Andean-derived sediment and recycled Sierras Pampeanas and Cuyania/Sunsás sources. (B) Zircon U-Pb (published; see Supplemental Material...

.... They associated this reorganization with the beginning of flat subduction, which would have been coeval (according to Carrapa et al., 2008 ) with broken foreland stages in the Bermejo Basin (>400 km south). One of the most crucial issues that Carrapa et al. (2008 , p. 1518–1543) address (in their words...

... of Bermejo basin between Precordillera fold-thrust belt to the west and crystalline basement blocks of Sierras Pampeanas province to the east. Measured and dated section exposed along Sierra de Huaco is outlined in bold black box. ...

..., characterized by E-W and NE-SW shortening, active throughout the middle-late Miocene and Pliocene. Furthermore, a comparison between the Fiambalá basin and similar sedimentary basins in the Sierras Pampeanas (e.g., Bermejo foreland basin) and the Eastern Cordillera leads us to propose that the study area...

...Andrea Stevens Goddard; Barbara Carrapa Abstract Sedimentation rates are valuable proxies for changes in tectonics, climate, and sediment routing systems. We use sedimentation rates from the Bermejo foreland basin of the southern Central Andes to evaluate the role of global Miocene–Pliocene climate...

... seismic reflection lines across the Bermejo foreland basin and the Precordillera area, provided by YPF S.A., formerly the Argentine National Oil Company. Data from two boreholes, Las Salinas Ax 1 and Bermejo Ax 1 ( Figure 3 ), both drilled by Cities Service during the 1970s, are also analyzed. The area...