U.S. Department of the Interior National Park Service Natural Resource Stewardship and Science Directorate Geologic Resources Division Sitka National Historical Park GRI Ancillary Map Information Document Produced to accompany the Geologic Resources Inventory (GRI) Digital Geologic Data for Sitka National Historical Park sitk_geology.pdf Version: 8/24/2016 I Sitka National Historical Park Geologic Resources Inventory Map Document for Sitka National Historical Park Table of Contents Geologic R.e..s.o..u..r.c..e..s.. .I.n..v.e..n..t.o..r..y. .M...a..p.. .D..o..c..u..m...e..n..t....................................................................... 1 About the N..P..S.. .G...e..o..l.o..g..i.c. .R...e..s.o..u..r.c..e..s.. .I.n..v.e..n..t.o..r..y. .P...r.o..g..r.a..m........................................................... 3 GRI Digital .M...a..p..s. .a..n..d.. .S...o..u..r.c..e.. .M..a..p.. .C...i.t.a..t.i.o..n..s........................................................................... 5 Map Unit Li.s..t.......................................................................................................................... 6 Map Unit De..s..c..r.i.p..t.i.o..n..s............................................................................................................. 8 g - Glacier .(..H..o..l.o..c..e..n..e..).................................................................................................................................................. 8 Qu - Uncon..s..o..l.id..a..t.e..d.. .d..e..p..o..s..i.t.s..,. .u..n..d..i.v..id..e..d.. .(..Q..u..a..t.e..r..n..a..r.y..)............................................................................................... 8 Qda - Daci.t.e.. .f.l.o..w...s.. .o..f. .C...r.a..t.e..r. .R...id..g..e.. .(..H..o..l.o..c..e..n..e..)........................................................................................................... 8 Qafr - Pyro..c..la..s..t.i.c.. .f.l.o..w... .d..e..p..o..s..i.t.s.. .o..f. .C...r.a..t.e..r. .R...id..g..e.. .(..H..o..l.o..c..e..n..e..)...................................................................................... 8 Qafd - Dac.i.t.e.. .a..i.r.-.f..a..ll. .t.u..f.f..s.. .o..f. .M...o..u..n..t. .E..d..g..e..c..u..m..b..e.. .(..P..le..i.s..t.o..c..e..n..e..).................................................................................... 8 Qafa - And..e..s..it.i.c.. .a..i.r.-.f..a..ll. .t.u..f.f..s.. .o..f. .M...o..u..n..t. .E..d..g..e..c..u..m..b..e.. .(..P..le..i.s..t.o..c..e..n..e..)............................................................................... 8 Qafb - Bas.a..l.t.i.c.. .a..ir..-.f.a..l.l. .t.u..f.f.s.. .o..f.. .M..o..u..n..t. .E..d..g..e..c..u..m...b..e.. .(.P..l.e..i.s..t.o..c..e..n..e..)................................................................................. 9 Qafu - Und.i.f.f..e..r.e..n..t.i.a..t.e..d.. .p..y..r.o..c..l.a..s..t.ic.. .d..e..p..o..s..i.t.s.. .o..f. .M...o..u..n..t. .E..d..g..e..c..u..m...b..e.. .(.P..l.e..is..t.o..c..e..n..e..)....................................................... 9 Qr - Rhyoli.t.e.. .d..o..m..e.. .o..f.. .C..r.a..t.e..r.. .R..i.d..g..e.. .(.P..l.e..is..t.o..c..e..n..e..)......................................................................................................... 9 Qa - Andes..i.t.e.. .a..n..d.. .b..a..s..a..l.t.ic.. .a..n..d..e..s..i.t.e.. .f.l.o..w...s.. .o..f.. .M..o..u..n..t. .E..d..g..e..c..u..m...b..e.. .(.P..l.e..i.s..t.o..c..e..n..e..)......................................................... 9 Qb - Basal.t. .f.l.o..w...s.. .o..f. .M...o..u..n..t. .E..d..g..e..c..u..m...b..e.. .(.P..l.e..is..t.o..c..e..n..e..)................................................................................................. 9 Tif - Felsic.. .i.n..t.r.u..s..i.v..e.. .r.o..c..k..s.. .(.T..e..r..t.ia..r..y..).......................................................................................................................... 10 TMZs - Se..r..p..e..n..t.in..i.t.e.. .(.T..e..r..t.ia..r..y.. .a..n..d.. .(.o..r.).. .M..e..s..o..z..o..i.c..)...................................................................................................... 10 Togd - Gr.a..n..o..d..i.o..r.i.t.e.. .o..f. .G...u..t. .B..a..y.. .(.O...l.ig..o..c..e..n..e..)............................................................................................................... 10 Toet - Ton..a..l.it.e.. .(..O..l.i.g..o..c..e..n..e.. .t.o.. .la..t.e.. .E..o..c..e..n..e..).................................................................................................................. 10 Toetm - M.i.g..m...a..t.it.e.. .(..O..l.i.g..o..c..e..n..e.. .t.o.. .la..t.e.. .E..o..c..e..n..e..)............................................................................................................. 11 Tegb - Ga..b..b..r.o.. .(.E..o..c..e..n..e..)............................................................................................................................................. 11 Tegd - Gr.a..n..o..d..i.o..r.i.t.e.. .(.e..a..r.l.y.. .E..o..c..e..n..e..)............................................................................................................................ 11 Tet - Tona..l.it.e.. .(..e..a..r.l.y.. .E..o..c..e..n..e..)...................................................................................................................................... 12 Ts - Sand.s..t.o..n..e.. .o..f.. .W...h..a..l.e.. .B..a..y.. .(.P..a..l.e..o..c..e..n..e..)................................................................................................................ 12 TKa - Arg.i.l.li.t.e.. .o..f. .N...e..c..k.e..r.. .B..a..y.. .(.T..e..r..t.ia..r..y.. .a..n..d.. .C..r.e..t.a..c..e..o..u..s..)............................................................................................ 12 TKv - Vol.c..a..n..ic.. .r..o..c..k.s.. .o..f.. .P..o..r.t. .A...le..x..a..n..d..e..r.. .(.T..e..r.t.i.a..r.y.. .a..n..d.. .C...r.e..t.a..c..e..o..u..s..).......................................................................... 13 Ksv - Vol.c..a..n..ic.. .r..o..c..k.s.. .o..f.. .S..i.t.k.a.. .G...r.a..y..w....a..c..k.e.. .(..C..r.e..t.a..c..e..o..u..s..)........................................................................................... 13 Ks - Sitka. .G...r.a..y..w...a..c..k..e.. .(.C...r.e..t.a..c..e..o..u..s..).......................................................................................................................... 13 Kss - Sem..i.s..c..h..i.s..t.o..s..e.. .S..i.t.k.a.. .G...r.a..y..w....a..c..k.e.. .(..C..r.e..t.a..c..e..o..u..s..)................................................................................................ 14 KJkk - Kh.a..z.. .C..o..m...p..le..x.. .(..C..r.e..t.a..c..e..o..u..s.. .a..n..d.. .J..u..r.a..s..s..i.c..)...................................................................................................... 15 KJks - Sa.n..d..s..t.o..n..e.. .(.C...r.e..t.a..c..e..o..u..s.. .a..n..d.. .J..u..r.a..s..s..i.c..)........................................................................................................... 15 KJkv - Vo.l.c..a..n..i.c.. .r.o..c..k..s.. .a..n..d.. .c..h..e..r.t. .(.C...r.e..t.a..c..e..o..u..s.. .a..n..d.. .J..u..r.a..s..s..i.c..).................................................................................... 16 MZsc - Sc..h..i.s..t. .(.M...e..s..o..z..o..i.c..).......................................................................................................................................... 16 MZgn - G.n..e..is..s.. .(..M..e..s..o..z..o..i.c..)......................................................................................................................................... 16 MZum - U.l.t.r.a..m...a..f.i.c.. .r.o..c..k..s.. .(.M...e..s..o..z..o..ic..).......................................................................................................................... 17 Kt - Tonal.i.t.e.. .o..f. .A...le..x..a..n..d..e..r.. .T..e..r.r.a..n..e.. .(..E..a..r.l.y.. .C..r.e..t.a..c..e..o..u..s..).............................................................................................. 17 Jt - Tonali.t.e.. .o..f. .W....r.a..n..g..e..l.li.a.. .T..e..r.r..a..n..e.. .(.L..a..t.e.. .J..u..r.a..s..s..i.c..).................................................................................................... 17 Jqd - Qua.r..t.z.. .d..io..r..it.e.. .(..M..i.d..d..l.e.. .J.u..r..a..s..s..ic..)......................................................................................................................... 17 Jd - Diorit.e.. .(.E..a..r.l.y.. .J..u..r.a..s..s..i.c..)........................................................................................................................................ 18 TRp - Pinn..a..c..l.e.. .P..e..a..k. .P..h..y..l.l.it.e.. .(..T..r.i.a..s..s..ic..)........................................................................................................................ 18 TRsv - Me..t.a..s..e..d..i.m..e..n..t.a..r..y.. .a..n..d.. .m..e..t.a..v..o..l.c..a..n..i.c.. .r.o..c..k..s.. .(.T..r.i.a..s..s..i.c..)..................................................................................... 18 TRm - Me.t.a..li.m...e..s..t.o..n..e.. .(.L..a..t.e.. .T..r.i.a..s..s..i.c..).......................................................................................................................... 19 TRg - Goo..n.. .D..i.p.. .G...r.e..e..n..s..t.o..n..e.. .(.T..r..ia..s..s..i.c..)......................................................................................................................