Part 9

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

K kettle 31

L Laramide Revolution 82 lateral moraine 30 layered gneisses 51 Little Ice Age 112 loess 108

M magma 60 magnetite 52 marine sedimentary rocks 21 metamorphic rocks 53 muscovite 55

N normal fault 39 nunatak 111

O obsidian 101 oreodonts 97 outwash 31 outwash plain 31 outwash terraces 34

P pegmatite 56 period 46 Pinedale Glaciation 109

Q quartzite 63

R reverse fault 39 rhyolite 100 rock glaciers 26

S schist 51 sedimentary rocks 45 series 47 serpentine 55 “soapstone” 55 Sundance Sea 79 systems 46

T talus 24 Targhee uplift 83 Teewinot Lake 92 terminal moraine 30 Tetons 8 Teton fault 37 thrust fault 39 timberline 15 titanothere 97 treeline 15 Triceratops 85 trilobites 70 tuff 92

W welded tuff 101

The GRAND TETON NATURAL HISTORY ASSOCIATION

The Grand Teton Natural History Association assists the National Park Service in the development of a broad public understanding of the geology, plant and animal life, history, and related subjects pertaining to Grand Teton National Park. It aids in the development of museums and wayside exhibits, offers for sale publications on natural and human history, and cooperates with the Government in the interest of Grand Teton National Park.

_Mail orders_: For a publication list, write the Grand Teton Natural History Association, Moose, Wyoming 83012.

_Creative Director_: Century III Advertising. Inc. _Designer_: Les Hays Studios, Inc. _Color Separations_—_Assembly_—_Plates_: Orent Graphic Arts, Inc. _Type_: Bodoni and Gothic _Printer_: Omaha Printing Co. _Printing_: Offset Lithography. Six Colors on Covers Two Colors on Body

CENOZOIC QUATERNARY Sand, gravel, and talus _Includes glacial outwash and materials deposited by present streams_ Landslide deposits Moraine deposits of Pinedale glaciers Moraine deposits of Bull Lake and older glaciers TERTIARY Volcanic rocks _Lava flows and volcanic ash_ Conglomerate, sandstone, shale, claystone, marl, and pumice _Deposited on land or in shallow lakes_ MESOZOIC Conglomerate, sandstone, shale, and coal _Deposited on land_ Shale, sandstone, and limestone _Mostly deposited in shallow seas_ PALEOZOIC Limestone, shale, and sandstone _Deposited in shallow seas_ PRECAMBRIAN Diabase dikes Granite, gneiss, and schist Fault _Dashed where approximately located; dotted where concealed beneath unfaulted younger deposits. U is on the side that moved up; D, on the side that moved down_ Geologic contact

Transcriber’s Notes

—Retained publication information from the printed edition: this eBook is public-domain in the country of publication.

—Corrected a few palpable typos.

—Re-arranged text in captions closer to the corresponding image.

—Expanded ambiguous references to illustrations, _e.g._ “Figure D” to “Figure 16D”

—Added one section heading, “The First Big Lake” to match the table of contents.

—Included a transcription of the text within some images, with estimated scale readings from charts.

—In the text versions only, text in italics is delimited by _underscores_.