U.S. Department of the Interior National Park Service Natural Resource Stewardship and Science Directorate Geologic Resources Division Indiana Dunes National Lakeshore GRI Ancillary Map Information Document Produced to accompany the Geologic Resources Inventory (GRI) Digital Geologic Data for Indiana Dunes National Lakeshore indu_geology.pdf Version: 3/4/2014 I Indiana Dunes National Lakeshore Geologic Resources Inventory Map Document for Indiana Dunes National Lakeshore 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........................................................... 2 GRI Digital .M...a..p.. .a..n..d.. .S..o..u..r.c..e.. .M...a..p.. .C..i.t.a..t.i.o..n............................................................................... 4 Map Unit Li.s..t.......................................................................................................................... 5 Map Unit De..s..c..r.i.p..t.i.o..n..s............................................................................................................. 7 Qlmm - Fille..d.. .a..n..d.. .m..o..d..i.f.i.e..d../.d..i.s..t.u..r.b..e..d.. .l.a..n..d.. .(.H..o..l.o..c..e..n..e..).................................................................................................. 7 Qlma1 - Ch.a..n..n..e..l. .a..n..d.. .f.l.o..o..d..p..l.a..in.. .(..H..o..l.o..c..e..n..e..)................................................................................................................. 7 Qlma2 - Ch.a..n..n..e..l. .a..n..d.. .f.l.o..o..d..p..l.a..in.. .o..v..e..r.. .o..ld..e..r.. .v..a..ll.e..y.. .f.i.l.l .(..H..o..l.o..c..e..n..e..)................................................................................. 7 Qlmts - Str.a..n..d..p..la..i.n.. .(.H...o..lo..c..e..n..e..)..................................................................................................................................... 7 Qlmtd - Dun..e..s.. .(..H..o..l.o..c..e..n..e..)............................................................................................................................................ 7 Qlmtl - Lag.o..o..n.. .(.H..o..l.o..c..e..n..e..)............................................................................................................................................ 7 Qlmcn - Ne.a..r..s..h..o..r.e.. .(.l.a..t.e.. .W...i.s..c..o..n..s..i.n.. .(.P..l.e..is..t.o..c..e..n..e..)..)...................................................................................................... 8 Qlmcd - Du.n..e..s.. .(..la..t.e.. .W....is..c..o..n..s..i.n.. .(.P..l.e..i.s..t.o..c..e..n..e..).)............................................................................................................. 8 Qlmcl - Lag..o..o..n.. .(.l.a..t.e.. .W...i.s..c..o..n..s..in.. .(..P..le..i.s..t.o..c..e..n..e..).)............................................................................................................. 8 Qlmgd - Ne.a..r..s..h..o..r.e..,. .d..u..n..e..s.. .(.l.a..t.e.. .W...i.s..c..o..n..s..i.n..,. .P..le..i.s..t.o..c..e..n..e..).)........................................................................................... 8 Qlmgs - Sp.i.t. .(.l.a..t.e.. .W...i.s..c..o..n..s..i.n.. .(.P..l.e..is..t.o..c..e..n..e..)..)................................................................................................................. 8 Qlmgp - Sp.i.t. .p..l.a..t.f.o..r.m... .(.l.a..t.e.. .W...i.s..c..o..n..s..i.n.. .(.P..l.e..is..t.o..c..e..n..e..)..)................................................................................................... 9 Qlbl1 - Glen..w....o..o..d.. .e..m..b..a..y..m...e..n..t. .f.i.l.l .(..la..t.e.. .W....is..c..o..n..s..i.n.. .(.P..l.e..i.s..t.o..c..e..n..e..).)................................................................................. 9 Qlbl2 - Bea.c..h..,. .c..o..l.l.u..v..ia..l. .s..l.o..p..e..,. .a..n..d.. .f.a..n.. .d..e..l.t.a.. .c..o..m..p..l.e..x.. .(.l.a..t.e.. .W...i.s..c..o..n..s..i.n.. .(.P..l.e..is..t.o..c..e..n..e..)..)................................................. 9 Qlbl3 - Ice-.m...a..r.g..i.n..a..l .l.a..k..e.. .c..o..m..p..l.e..x.. .(.l.a..t.e.. .W...i.s..c..o..n..s..i.n.. .(.P..l.e..is..t.o..c..e..n..e..)..)................................................................................ 9 Qlbm1 - La.k..e.. .b..o..r.d..e..r. .r..id..g..e..s.. .(..la..t.e.. .W....is..c..o..n..s..i.n.. .(.P..l.e..i.s..t.o..c..e..n..e..).)......................................................................................... 9 Qlbr1 - Tin..l.e..y.. .i.n..n..e..r. .r.a..m...p.. .(.l.a..t.e.. .W...i.s..c..o..n..s..i.n.. .(.P..l.e..is..t.o..c..e..n..e..)..)........................................................................................... 10 Qlbr2 - Tin..l.e..y.. .c..o..l.la..p..s..e..d.. .r..a..m..p.. .(..la..t.e.. .W....is..c..o..n..s..i.n..,. .P..l.e..is..t.o..c..e..n..e..)..).................................................................................... 10 Qlbm2 - T.i.n..le..y.. .r..id..g..e.. .(..la..t.e.. .W....is..c..o..n..s..i.n..,. .P..l.e..is..t.o..c..e..n..e..)..)................................................................................................... 10 Qlbm3 - T.i.n..le..y.. .o..u..t.e..r.. .f.r.i.n..g..e.. .(.l.a..t.e.. .W...i.s..c..o..n..s..i.n..,. .P..le..i.s..t.o..c..e..n..e..).)......................................................................................... 10 Qlbm4 - Ic..e..-.m...a..r.g..i.n..a..l .d..r..a..in..a..g..e.. .t.r..o..u..g..h.. .(.l.a..t.e.. .W...i.s..c..o..n..s..in.. .(..P..le..i.s..t.o..c..e..n..e..).)........................................................................ 10 Qvr1 - Inn..e..r. .r.a..m...p.. .(.l.a..t.e.. .W...i.s..c..o..n..s..i.n.. .(.P..l.e..is..t.o..c..e..n..e..)..)...................................................................................................... 10 Qvr2 - Hu.m...m...o..c..k.y.. .i.n..n..e..r. .r..a..m..p.. .(..la..t.e.. .W....is..c..o..n..s..i.n.. .(.P..l.e..i.s..t.o..c..e..n..e..).).................................................................................... 11 Qvr3 - Dis..s..e..c..t.e..d.. .r.a..m...p.. .(.l.a..t.e.. .W...i.s..c..o..n..s..i.n..,. .P..le..i.s..t.o..c..e..n..e..).)............................................................................................... 11 Qvm1 - C.o..ll.a..p..s..e..d.. .h..e..a..d..-.o..f..-.f.a..n.. .(..la..t.e.. .W....is..c..o..n..s..i.n..,. .P..l.e..is..t.o..c..e..n..e..)..).................................................................................. 11 Qvm2a - B...r.o..a..d.. .u..p..l.a..n..d.. .(.l.a..t.e.. .W...i.s..c..o..n..s..in..,. .P..l.e..i.s..t.o..c..e..n..e..).)............................................................................................... 11 Qvm2b - C...o..r.e.. .u..p..l.a..n..d.. .(.l.a..t.e.. .W...i.s..c..o..n..s..in..,. .P..l.e..i.s..t.o..c..e..n..e..).)................................................................................................. 11 Qvm3 - In.n..e..r. .f..r.i.n..g..e.. .(.l.a..t.e.. .W...i.s..c..o..n..s..in..,. .P..l.e..i.s..t.o..c..e..n..e..).).................................................................................................... 11 Qvm4 - O.u..t.e..r. .f..r.i.n..g..e.. .(.l.a..t.e.. .W...i.s..c..o..n..s..in..,. .P..l.e..i.s..t.o..c..e..n..e..).)................................................................................................... 12 Qvm5 - O.u..t.e..r.m...o..s..t. .f.r..in..g..e.. .(..la..t.e.. .W....is..c..o..n..s..i.n..,. .P..l.e..is..t.o..c..e..n..e..)..)........................................................................................... 12 Qvm6 - M.e..l.t.w...a..t.e..r.-..s..c..o..u..r.e..d.. .c..o..r.e.. .(..la..t.e.. .W....is..c..o..n..s..i.n.. .(.P..l.e..i.s..t.o..c..e..n..e..).)............................................................................... 12 Qvm7 - In.t.r.a..-..c..h..a..n..n..e..l .l.o..w... .(..la..t.e.. .W....is..c..o..n..s..i.n.. .(.P..l.e..i.s..t.o..c..e..n..e..).).......................................................................................... 12 Qvm8 - In.t.r.a..-..c..h..a..n..n..e..l .l.o..w.../.c..o..l.l.a..p..s..e..d.. .d..r.a..i.n..a..g..e.. .(.l.a..t.e.. .W...i.s..c..o..n..s..in.. .(..P..le..i.s..t.o..c..e..n..e..).)........................................................... 13 Qvt1 - Co.l.la..p..s..e..d.. .c..h..a..n..n..e..l. .(.l.a..t.e.. .W...i.s..c..o..n..s..i.n.. .(.P..l.e..is..t.o..c..e..n..e..)..).......................................................................................... 13 Qvt2 - Fill.e..d.. .c..h..a..n..n..e..l .(..la..t.e.. .W....is..c..o..n..s..i.n.. .(.P..l.e..i.s..t.o..c..e..n..e..).).................................................................................................. 13 Qvt3 - Dis..s..e..c..t.e..d.. .c..h..a..n..n..e..l .w....a..ll.s.. .(.l.a..t.e.. .W...i.s..c..o..n..s..i.n.. .(.P..l.e..is..t.o..c..e..n..e..)..)................................................................................ 13 Qvf1 - Up.p..e..r.. .f.a..n.. .s..u..r.f..a..c..e.. .(.l.a..t.e.. .W...i.s..c..o..n..s..in.. .(..P..le..i.s..t.o..c..e..n..e..).).......................................................................................... 13 Qvf2 - Co.l.l.a..p..s..e..d.. .f.a..n.. .(.l.a..t.e.. .W...i.s..c..o..n..s..i.n.. .(.P..l.e..is..t.o..c..e..n..e..)..)................................................................................................. 13 Qvf3 - Mix..e..d.. .f..a..n.. .(.l.a..t.e.. .W...i.s..c..o..n..s..in.. .(..P..le..i.s..t.o..c..e..n..e..).)........................................................................................................ 14 Qvf4 - Op..e..n.. .f.a..n.. .c..h..a..n..n..e..l.s.