C Carbon-14 48 carnivores 95 chlorite 56 cirque 30 climatic optimum 112 Cordilleran trough 69 D diabase 59 dikes 56 dipping 39 dolomite 75 E “edgewise” conglomerate 73 epochs 46 eras 46 erosion 27 erratics 31 extrusive igneous rocks 46 F fault 9 fault block mountain range 37 fault scarps 37 formations 66 frost wedging 25 G geologic 10 glacial striae 30 gradients 28 Grand Valley Lake 95 granite 55 granite gneiss 54 groups 47 gypsum 79 H herbivores 95 Hoback normal fault 103 hole 8 hornblende 51 I Ice Age 105 igneous rocks 46 intrusive igneous rocks 46 J Jackson Hole 8 jade 55