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wtr --- water ---
tz --- tectonic zone ---
bx --- tectonic breccia ---
Qa Holocene alluvium ---
Qla Holocene lacustrine deposits ---
Qp Holocene peat deposits ---
Ql Holocene-Pleistocene loess Palouse Formation
Qls Holocene-Pleistocene mass-wasting deposits, mostly landslides ---
Qs Holocene-Pleistocene sedimentary deposits or rocks ---
Qfg Pleistocene outburst flood deposits, gravel, late Wisconsin Missoula, glacial Lake, deposits of
Qfs Pleistocene outburst flood deposits, late Wisconsin Missoula, glacial Lake, deposits of
Qgd Pleistocene continental glacial drift, Fraser-age mostly Vashon Stade in western WA; unnamed in eastern WA
Qgl Pleistocene glaciolacustrine deposits, Fraser-age mostly Vashon Stade in western WA; unnamed in eastern WA
Qglf Pleistocene lacustrine and outburst flood deposits, Fraser-age ---
Qgo Pleistocene continental glacial outwash, Fraser-age mostly Vashon Stade in western WA; unnamed in eastern WA
Qgp Pleistocene continental glacial drift, pre-Fraser ---
Qgt Pleistocene continental glacial till, Fraser-age mostly Vashon Stade in western WA; unnamed in eastern WA
PLMcg(c) Pliocene-Miocene continental sedimentary deposits, conglomerate Chamokane Creek area, conglomerate of
Mv(gN2) Miocene, middle basalt flows Grande Ronde Basalt, N2 (upper flows of norm.mag.pol.)
Mv(wpr) Miocene, middle basalt flows Priest Rapids Member, Wanapum Basalt
Ecg(t) Eocene continental sedimentary deposits, conglomerate Tiger Formation
Ei Eocene intrusive rocks, undivided ---
Eia(sp) Eocene acidic intrusive rocks Silver Point Quartz Monzonite
Eida Eocene intrusive dacite ---
Eii(s) Eocene intermediate intrusive rocks Springdale, quartz monzodiorite near
Eiqm(l) Eocene quartz monzonite Loon Lake, quartz monzonite near
Eir Eocene intrusive rhyolite ---
Eva(c) Eocene andesite flows Colville Valley, andesitic rocks in
Evd(s) Eocene dacite flows Sanpoil Volcanics
Evt Eocene tuffs and tuff breccias ---
Ec(t) Eocene, lower-mid continental sedimentary deposits, conglomerate Tiger Formation
TKiaa(s) Tertiary-Cretaceous alaskite-aplite-pegmatite Scotia area, leucocratic plutonic rocks of
Kia(c) Cretaceous acidic intrusive rocks Camden area, monzogranite of the
Kia(fl) Cretaceous acidic intrusive rocks Fan Lake, granodiorite of
Kia(gp) Cretaceous acidic intrusive rocks Galena Point Granodiorite
Kia(m) Cretaceous acidic intrusive rocks Midnite mine pluton
Kia(n) Cretaceous acidic intrusive rocks Narcisse Creek, monzogranite near
Kia(s) Cretaceous acidic intrusive rocks Starvation Flat Quartz Monzonite
Kiaa Cretaceous alaskite-aplite-pegmatite ---
Kiat(b) Cretaceous two-mica granite Blickensderfer Quartz Monzonite
Kiat(bm) Cretaceous two-mica granite Big Meadows, monzogranite of
Kiat(d) Cretaceous two-mica granite Dubious Creek, granodiorite of
Kiat(e) Cretaceous two-mica granite Eloika Lake, monzogranite N of
Kiat(g) Cretaceous two-mica granite Hall Mountain, granodiorite of
Kiat(p) Cretaceous two-mica granite Phillips Lake Granodiorite
Kiat(s) Cretaceous two-mica granite Mount Spokane, granite of
Kiat(sv) Cretaceous two-mica granite Spring Valley, granodiorite west of
Kig(lr) Cretaceous granite Little Roundtop, monzogranite of
Kog(ms) Cretaceous orthogneiss Mount Spokane, granite of
Kog(n) Cretaceous orthogneiss Newman Lake Gneiss
Ji(l) Jurassic, middle intrusive rocks, undivided Lane Mountain pluton
JTRii(f) Jurassic-Triassic intermediate intrusive rocks Flowery Trail Granodiorite
Ccb(l) Carboniferous metacarbonate Limekiln Hill, carbonate rocks of
MDcb(1c) Miss.-Devonian metacarbonate Chewelah, lower carbonate rocks east of
MDcb(2c) Miss.-Devonian metacarbonate Chewelah, middle carbonate rocks east of
MDcb(3c) Miss.-Devonian metacarbonate Chewelah, upper carbonate rocks east of
Dcb(v) Devonian metacarbonate Valley, carbonate rocks near
Omm(l) Ordovician marine metasedimentary rocks Ledbetter Slate
OCcb(d) Ordovician-Cambrian metacarbonate Metaline Formation, bedded dolomite of
OCcb(l) Ordovician-Cambrian metacarbonate Metaline Formation, massive limestone of
OCcb(m) Ordovician-Cambrian metacarbonate Metaline Formation
Cph(m) Cambrian phyllite, low grade Maitlen Phyllite
CZq(1a) Cambrian-Proterozoic quartzite, low grade Addy Quartzite, basal quartzite unit
CZq(3a) Cambrian-Proterozoic quartzite, low grade Addy Quartzite, purple quartzite unit
CZq(4a) Cambrian-Proterozoic quartzite, low grade Addy Quartzite, coarse quartzite and argillite unit
CZq(5a) Cambrian-Proterozoic quartzite, low grade Addy Quartzite, upper unit
CZq(a) Cambrian-Proterozoic quartzite, low grade Addy Quartzite
PZcb Paleozoic metacarbonate ---
PZcb(gl) Paleozoic metacarbonate Gardiner Creek, lower dolomite of
PZcb(gu) Paleozoic metacarbonate Gardiner Creek, upper dolomite of
PZmm(g) Paleozoic marine metasedimentary rocks Gardiner Creek, rocks of
Zcg(h) upper Proterozoic continental sedimentary deposits, conglomerate Huckleberry Formation, Windermere Group
Zib upper Proterozoic basic intrusive rocks ---
Zmm(m) upper Proterozoic marine metasedimentary rocks Monk Formation, Windermere Group
Zmt(w) upper Proterozoic metasedimentary and metavolcanic rocks Windermere Group
Zmv(h) upper Proterozoic metavolcanic rocks Huckleberry Formation, greenstone member, Windermere Group
Yar(b) middle Proterozoic argillite Buffalo Hump Formation, Deer Trail Group
Yar(dt) middle Proterozoic argillite Deer Trail Group
Yar(m) middle Proterozoic argillite McHale Slate, Deer Trail Group
Yar(t) middle Proterozoic argillite Togo Formation, Deer Trail Group
Ycb(e) middle Proterozoic metacarbonate Edna Dolomite, Deer Trail Group
Ycb(s) middle Proterozoic metacarbonate Stensgar Dolomite, Deer Trail Group
Yib middle Proterozoic basic intrusive rocks ---
Yms(bu) middle Proterozoic metasedimentary rocks Belt Supergroup, upper
Yms(p) middle Proterozoic metasedimentary rocks Prichard Formation, Belt Supergroup
Yms(rb) middle Proterozoic metasedimentary rocks Ravalli Group, Burke Fm., Belt Supergroup
Yms(rr) middle Proterozoic metasedimentary rocks Ravalli Group, Revett Fm., Belt Supergroup
Yms(s) middle Proterozoic metasedimentary rocks Striped Peak Fm., Missoula Group, Belt Supergroup
Yms(s) middle Proterozoic metasedimentary rocks Striped Peak Fm., Missoula Group, Belt Supergroup
Yms(s) middle Proterozoic metasedimentary rocks Striped Peak Fm., Missoula Group, Belt Supergroup
Yms(s) middle Proterozoic metasedimentary rocks Striped Peak Fm., Missoula Group, Belt Supergroup
Yms(s) middle Proterozoic metasedimentary rocks Striped Peak Fm., Missoula Group, Belt Supergroup
Yms(sr) middle Proterozoic metasedimentary rocks St. Regis Fm., Ravalli Group, Belt Supergroup
Yms(w) middle Proterozoic metasedimentary rocks Wallace Formation, Belt Supergroup
Yms(wl) middle Proterozoic metasedimentary rocks Wallace Formation, lower, Belt Supergroup
Yms(wu) middle Proterozoic metasedimentary rocks Wallace Formation, upper, Belt Supergroup
Yq(b) middle Proterozoic quartzite, low grade Buffalo Hump Formation, Deer Trail Group
Yq(t) middle Proterozoic quartzite, low grade Togo Formation, Deer Trail Group
pCbg(h) Precambrian banded gneiss Hauser Lake Gneiss
pChm Precambrian heterogeneous metamorphic rocks ---