reduced file size version (more functional for some computers): morgan_weber_warmspringscliff_reduced
reduced file size version (more functional for some computers): morgan_warmspringscliff_reduced
Cyclic Pennsylvanian Morgan Formation and overlying Weber Sandstone exposed at Warm Springs Cliff, Dinosaur National Monument, Colorado.
reduced file size version (more functional for some computers): carmelo_fm_pt_lobos_ca_reduced
Paleocene deep marine sandstone, mudstone, and matrix-supported intraclastic conglomerate within the Carmelo Formation exposed at Point Lobos, California.
Paleocene deep marine sandstone of the ‘Merle’ Formation showing erosional truncation of levee deposits by overlying channel deposits.
reduced file size version (more functional for some computers): morgan_yampa_canyon_reduced
reduced file size version (more functional for some computers): morgan_yampa_canyon2_reduced
Cyclothems of the Pennsylvanian Morgan Formation exposed in the canyon of the Yampa River, Dinosaur National Monument, Colorado. Alternating intervals of blue-gray limestone and orange cross-stratified sandstone record repeated glacio-eustatic sea level fluctuations. Photosets acquired from raft.
reduced file size version (more functional for some computers): hermosa_hw550_reduced
Roadcut of Pennsylvanian Hermosa Group strata exposed between Molas Pass and Engineer Pass along US 550, San Juan Mountains, Colorado. Amalgamated cross-bedded, lenticular arkosic sandstone bodies and fine-grained mudstone partings with complex bedding relationships.
reduced file size version (more functional for some computers): weaver_jordan_oneota_reduced
Roadcut of Late Cambrian Jordan Sandstone and overlying Ordovician Oneota Dolomite along Wabasha County 26, near Weaver, MN, illustrating large-scale crossbeds and unconformable formation boundary.
reduced file size version (more functional for some computers): franconia_lacrosse_reduced
Cross-bedded glauconitic sandstone of the Franconia Formation (Tunnel City Group in local lore) exposed on Grandad Bluff, La Crosse, WI.
Slab showing large circular trace fossils within the Upper Cambrian Mount Simon-Wonewoc Sandstone, displayed in the entryway of Weeks Hall, University of Wisconsin-Madison.
reduced file size version (more functional for some computers): lewiston_jordan_reduced
Large roadcut of Late Cambrian Jordan Sandstone and overlying Ordovician Oneota Dolomite between Stockton and Lewiston, MN, illustrating low-angle bedding, intraclasts, and several scales of cross-stratification.
reduced file size versions (more functional for some computers):
very reduced size versions
Cross-stratified Late Cambrian Jordan Sandstone, Homer, MN.
reduced file size version (more functional for some computers): vaqueros_S1_oligocene_reduced
Marine sandstone of the Oligocene Vaqueros Formation containing macroscopic soft-sedimentary deformation and meter-scale bedforms.
