[Unconformity]—a break in the sequence of [rock] [formations] which separates younger [strata] from older ones; caused primarily by removal of older rocks by erosion before those of a later sequence were laid down.
[Weathering]—any natural process, mechanical or chemical, whereby [rocks] are disintegrated or decomposed into smaller particles and ultimately into clay and soil.
Index
[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] N [O] [P] [Q] [R] [S] [T] [U] V [W] X Y Z
A [abrasion]: [30] Adair, John: [6] “Age of Mammals”: [27] alabaster: [17] ancient man in Palo Duro Canyon: [3] [anhydrite]: [18] [anticlines]: [18] Apaches: [1], [3] [aquifer]: [26] Arapahos: [3] [Archeozoic] [rocks]: [13]
B “blow sand”: [28] bottom load: [29] Brazos River: [8] Buettneria: [22], [23], [24]
C [calcite]: [22] [caliche]: [26] camels: [27] camping and picnicking: [43] Canyon, Texas: [45] Capitol Peak: [1], [18], [19], [31], [40], [42] Carboniferous [Period]: [16] Catarina Cave: [19], [37], [38] chemical [weathering]: [30] [chert]: [26] Cheyennes: [3] Civilian Conservation Corps: [8] Colorado River: [8] comancheros: [6], [46] Comanches: [1], [3] concretions: [22] [conglomerate]: [24] coprolites: [22] Coronado, Francisco Vasquez de: [3] Coronado Lodge: [1], [21], [26], [33], [34] “Cow Cabins”: [41] cross-bedding: [19], [20] cross-stratification: [19]
D decomposition: [30] Devil’s Slide: [19], [40], [44] Devil’s Tombstone: [40] differential erosion: [31], [41] disintegration: [30] dugout, Col. Charles Goodnight’s: [39], [40]
E earth history: [10]-12 Eastern Caprock Escarpment: [8] erosion, differential: [31], [41]
F flash floods: [29] [fluorescence]: [26] [fluvial] [sediments]: [24] Fortress Cliff: [1], [40], [42] [fossils]: [10] frost wedging: [30]