Extensive outcrops of coarse-grained channel to fine-grained levee deposits of the Campanian Cerro Torro Formation are present throughout the Torres del Paine National Park in southern chile ( Figure 1 ; Fildani et al, chapter 33, this volume). The outcrop panel in Figure 2 represents part of one face of a nearly continuous exposure mapped in this paper that is present on all four faces of a mesa within the Silla Ojo Syncline ( Figure 1 ). The depositional architectures consist predominantly of sheetlike, tabular elements comprising interbedded sandstone and shale bedsets, onlapping older levee deposits (described by Barton et al., chapter 39, this volume). Isolated channel elements and scour features are also present. The vertically stacked, tabular architectural elements observed in the outcrop panel are interpreted to represent a phase of partially confined to unconfined deposition outboard of a major levee avulsion site, analogous in many respects to the avulsion deposits described by Hiscott et al. (1979). Overlying and truncating the tabular elements of the avulsion deposits is a thick, multistory channelized conglomerate ( Figure 2 ) with internally organized and chaotic bedding and impressive debris flow deposits. A similar vertical facies transition from levee to avulsion to channel deposists is also described by O’Byrne et al. (chapter 30, this volume) and Arnott (chapter 29, this volume) from the Isaac Formation, Canada.

Abstract The Condor channel complex, part of the Campanian Cerro Toro Formation (see overview by Fildani et al., chapter 32, this volume) forms part of an extensive outcrop belt exposed in the Pare Nacional Torres Del Paine in southern chile. The data presented here illustrate large, coarse-grained, barform elements that are interpreted as deposits within a deep-water channel complex. The photomosaics in Figures 1 and 2 are from the easternmost extent of a continuous but variably dip- and strike-oriented exposure, which is more than a kilometer (0.6 mi) long. It can be traced into the younger section of the Condor channel complex described in detail by Barton et al. (chapter 39, this volume). The lowest exposed part of the cliff section in this eastern panel ( Figure 2 ) contains slumps and thin-bedded channel fills in a low net-to-gross background with lags, collapsed margins, and heterolithic channel fills. These are interpreted as the product of through-going, large-volume, high-density flows interstratified with deposits of sporadic, low-density flows. The upper two-thirds of the cliff face comprises three distinct sand-rich intervals here termed channel story sets (CSS; see paper by O’Byrne et al., chapter 30, this volume, for further definition). The lower two have similar erosional channel features at their base that are filled with thin-bedded tail, lag, and slump deposits ( Figure 2 ). This implies that each channel story set initially had an efficient erosion-and bypass-dominated phase prior to accumulation of dune and interdune/suspension deposits ( Figure 3 ),

Abstract Exposures of the Cretaceous Cerro Toro Formation, southern chile, provide an opportunity to compare and contrast the facies architecture of outer-and inner-levee deposits associated with a deep-water, slope channel system ( Figure 1A ). In the study area, located just to the east of Lago Pehoe ( Figure 1B ), a series of conglomerate-filled, southeast-trending channel systems have been mapped ( Beaubouef, 2004 ). The best exposed of these, referred to as channel-complex set 3, is up to 5 km (3 mi) wide and 200 m (650 ft) thick. Internally, set 3 is composed of channel complexes that aggrade and shift laterally to the south. The focus of this study is on deposits that flank channel-complex set 3 to the east. Two outcrop panels are discussed. The first, referred to as Lago Nordenskjold, is located about 1 km (0.6 mi) from the margin of channel-complex set 3; it was interpreted as an outer levee ( Devries and Lindholm, 1994 ; Beaubouef, 2004 ). The second, referred to as Laguna Mellizas Sur, is located at the margin of channel-complex set 3 and interpreted in this paper as an inner levee.