The following are exerpted from "Colorado Plateau Coring Project, Phase I (CPCP-I): A continuously cored, globally exportable chronology of Triassic continental environmental change from Western North America" by Paul E. Olsen, John W. Geissman, Dennis V. Kent, George E. Gehrels, Roland Mundil, Randall B. Irmis, Christopher Lepre, Cornelia Rasmussen, Dominique Giesler, William G. Parker, Natalia Zakharova, Wolfram M. Kürschner, Charlotte Miller, Viktoria Baranyi, Morgan F. Schaller, Jessica H. Whiteside, Douglas Schnurrenberger, Anders Noren, Kristina Brady Shannon, Ryan O’Grady, Matthew W. Colbert, Jessie Maisano, David Edey, Sean T. Kinney, and the CPCP Team (in review), Scientific Drilling. The paper (under review at Scientific Drilling) can be acceded at CPCP_Scientific_Drilling.html.

Summary Data for CPCP Drilling Sites and cores

Locations of Cores

Location of CPCP cores. A, Location of the Colorado Plateau (red-brown area) in the United States with the cross marking the location of the coring sites in Petrified Forest National Park: LAX, Los Angeles, California; NYC, New York City, New York which is just to the east and south of the location of the Newark – Hartford APTS (NBCP cores and outcrops). B, outline of the Colorado Plateau (dotted line) and Triassic outcrop area (red brown) showing the location of Petrified Forest National Park (PFNP): ABQ, Albuquerque, New Mexico (NM); FLG, Flagstaff, Arizona (AZ); GJT, Grand Junction, Colorado (CO); LV, Las Vegas, Nevada (NV); SLC, Salt Lake City, Utah (UT); CA, California. C, Map of PFNP with location of the coring sites: PFNP, Petrified Forest National Park; PFNP-A, Private or State Trust land; PFNP, Petrified Forest National Park; a, Park Headquarters; b, Park entrance off I-40; c, Rainbow Forest Museum; PFNP-CPCP13-1A, core site at Chinde Point; PFNPCPCP13-2A, 2B, core site at “West Bone Yard”.

CPCP Cores

Lithological logs, line-scan images, natural gamma, magnetic susceptibility, for each of the cores and holes drilled during the CPCP). Letters A-K refer to core segment photographs below. Abbreviations for the core depths are: mcd, meters core (or hole) depth; msd, meters stratigraphic depth of core or hole with msd = 0.866 • mcd in 1A.

Examples of Core Segments

Representative facies in core segments from cores CPCP-PFNP-13-1A (A-J) and CPCP-PFNP-13-2B (K-L) with bedding dipping down towards left except as noted: A, pedogenic mudstone of lower Owl Rock Member of Chinle Formation in which bedding is obscure but indicated by long axes of elliptical spots (“reduction spots or haloes”); B, lower Black Forest Bed of Petrified Forest Member of the Chinle Formation with abundant intraformational carbonate clasts and volcaniclastic material; C, pedogenic mudstone of Petrified Forest Member of the Chinle Formation with long axis of elliptical spots dipping downward to the right indicating a misoriented core segment; D, pedogenic ripple-bedded fine sandstone and siltstone of the Petrified Forest Member of the Chinle Formation with long axes of elliptical spots clearly aligned with bedding; E, sandstone and conglomerate overlying pedogenic mudstone within upper Sonsela Member of Chinle Formation; F, Contact (c) between coarse sandstone of overlying Sonsela Member of the Chinle Formation and underlying Blue Mesa Member of Chinle Formation; G, pedogenic mudstonme of the Blue Mesa Member of the Chinle Formation; H. 4-color mottled pedogenic mudstone of the Mesa Redondo Member of the Chinle Formation; I, Contact (c) between sandstone of overlying Mesa Redondo Member of the Chinle Formation and sandstone and siltstone of underlying Holbrook Member of Moenkopi Formation; J, chicken-wire gypsum bed in siltstone of Moqui Member of Moenkopi Formation; K, Contact (c) between cobble conglomerate of overlying Shinarump Member of the Chinle Formation and sandstone and siltstone of underlying Holbrook Member of Moenkopi Formation; L, , Contact (c) between sandstone siltstone of overlying Wupatki Member of the Moenkopi Formation and sandstone and sandstone of underlying Coconino Sandstone of Early Permian age.