Sedimentary rocks - Rock formed from accumulations of sediment, which may consist of rock fragments of various sizes, remains or products of animals or plants, products of chemical action or of evaporation, or mixtures of these; stratification is single most characteristic feature of sedimentary rocks, which cover about 75 percent of land areaxxxi
Erosion - Movement of material from one place to another on earth's surface; agents of movement include gravity, water, ice, and windxxxii
Deposition -
Lithification - Process by which unconsolidated rock-forming materials are converted into a consolidated or coherent statexxxiii
Shale –
Sandstone –
Limestone –
Orogeny – Process by which mountain structures developxxxiv
Orogen -
Eustacy - Change in sea level produced entirely by increase or decrease in amount of water in oceans; hence of worldwide proportionsxxxv
Forarc basin - A depression in the sea floor located between an accretionary wedge and a volcanic arc in a subduction zone, and lined with trapped sedimentxxxvi
Backarc basin - A depression landward of a volcanic arc in a subduction zone, which is lined with trapped sediment from the volcanic arc and the plate interiorxxxvii
Syncline - A configuration of folded, stratified rocks in which rocks dip downward from opposite directions to come together in a troughxxxix
Anticline - A configuration of folded, stratified rocks in which rocks dip in two directions away from a crest, as principal rafters of a common gable roof dip away from ridgepole; the "ridgepole," or crest, is called the hinge line or axisxl
Faults - Surface of rock rupture along which has been differential movementxli
Normal - Fault in which hanging wall appears to have moved downward relative to footwall; opposite of thrust fault; also called gravity faultxlii
Reverse - Fault in which hanging wall appears to have moved upward relative to footwall; contrast with normal, or gravity fault; also called thrust faultxliii
Accretionary prism – A mass of sediment and oceanic lithosphere that is transferred from a subducting plate to the less dense, overriding plate with which it convergesxliv
Divergent margin - Boundary between two plates moving apart; new oceanic-type lithosphere is created at the openingxlvi
Active margin -
Passive margin - A border that lies between continental and oceanic lithosphere, but is not a plate margin, marked by lack of seismic and volcanic activityxlvii
Subduction - Act of one tectonic unit's descending under another (commonly slab of lithosphere)xlviii