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Geologic Resources Inventory Ancillary Map Information Document

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Geologic Resources Inventory Ancillary Map Information Document U.S. Department of the Interior National Park Service Natural Resource Stewardship and Science Directorate Geologic Resources Division Organ Pipe Cactus National Monument GRI Ancillary Map Information Document Produced to accompany the Geologic Resources Inventory (GRI) Digital Geologic Data for Organ Pipe Cactus National Monument orpi_geology.pdf Version: 5/27/2021 I Organ Pipe Cactus National Monument Geologic Resources Inventory Map Document for Organ Pipe Cactus National Monument Table of Contents Geologic Resourc..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 NPS Ge..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 Map an...d.. .S..o..u...r.c..e.. .M...a..p.. .C...i.t.a..t.i.o...n...................................................................................... 5 Index Map .................................................................................................................................................................... 5 Map Unit List ............................................................................................................................. 6 Map Unit Descript.i.o...n..s...................................................................................................................... 9 QTal - Alluvi.u..m... .a..n..d.. .c.o..l.l.u..v..i.u..m... .(.H..o..l.o..c..e..n..e..,. .P..l.e..i.s..t.o..c..e..n..e.. .a..n..d.. .P..l.i.o..c.e..n..e..)............................................................................ 9 QTg - Terrac.e.. .g..r..a..v.e..l.s.. .(.H...o..l.o..c.e..n..e..,. .P...l.e..i.s.t.o..c..e..n..e.. .a..n..d.. .P...li.o..c..e..n..e..)........................................................................................ 9 QTls - Lands..li.d..e.. .d..e..p..o..s..i.t.s.. .(.H..o..l.o..c..e..n..e..,. .P..l.e..i.s..t.o..c..e..n..e.. .a..n..d.. .P..l.i.o..c.e..n..e..)................................................................................... 9 Batamote An..d..e..s..it.e.. .C...o..m...p..l.e..x........................................................................................................................................... 9 Tbau - Batamore Andesite Complex, flows, flow breccias, and vent intrusive rocks, undivided (middle Miocene) ............................................................................................................................................................. 9 Tba - Bata..m...o..r.e.. .A..n..d..e..s..i.t.e.. .C...o..m...p..l.e..x.,. .b..a..s..a..l.t.i.c.. .a..n..d..e..s.i.t.e.. .f.l.o..w...s. .a..n..d.. .f.l.o..w... .b..r.e..c..c..ia..s.. .(.m...i.d..d..l.e.. .M...i.o..c..e..n..e..)...................... 10 Tbb - Bata..m...o..r.e.. .A..n..d..e..s..i.t.e.. .C...o..m...p..l.e..x.,. .p..o..r.p..h..y..r.i.t.i.c.. .b..a..s..a..lt. .(..m...id..d..l.e.. .M...i.o..c..e..n..e..)............................................................ 10 Tbai - Bat.a..m...o..r.e.. .A..n..d..e..s..i.t.e.. .C...o..m...p..le..x..,. .v..e..n..t. .i.n..t.r.u..s..i.v.e.. .i.g..n..e..o..u..s.. .(.m...i.d..d..l.e.. .M...i.o..c.e..n..e..).................................................... 10 Tbab - Ba.t.a..m...o..r.e.. .A..n..d..e..s..i.t.e.. .C...o..m...p..l.e..x.,. .v..e..n..t. .b..r.e..c..c..i.a..s.. .(.m...i.d..d..le.. .M...i.o..c..e..n..e..)................................................................ 10 Tsvu - Sedi.m...e..n..t.a..r.y.. .a..n..d.. .v..o..l.c.a..n..i.c.. .r.o..c..k..s..,. .u..n..d..i.v.i.d..e..d.. .(.m...i.d..d..l.e.. .a..n..d.. .e..a..r.l.y.. .M...i.o..c.e..n..e..)........................................................... 11 Rhyolite of .M...o..n..t.e..z..u..m...a..'s.. .H...e..a..d...................................................................................................................................... 11 Tmu - Rhy..o..l.it.e.. .o..f. .M...o..n..t.e..z..u..m...a..'.s.. .H..e..a..d..,. .u..n..d..i.v..i.d..e..d.. .(.e..a..r.l.y.. .M...i.o..c.e..n..e..)....................................................................... 11 Tma - Rhyolite of Montezuma's Head, augite andesite and hypersthene-hornblende andesite of Ajo Range (ea..r.l.y.. .M...io..c..e..n..e..)......................................................................................................................................... 11 Tmv - Rhy..o..li.t.e.. .o..f. .M...o..n..t.e..z..u..m...a..'.s.. .H..e..a..d..,. .r.h..y..o..l.i.t.e.. .o..f. .v..it.r..o..p..h..y.r.e.. .d..i.k..e..s.. .(.e..a..r.l.y.. .M...i.o..c.e..n..e..)............................................. 11 Tmat - Rh.y..o..l.it.e.. .o..f. .M...o..n..t.e..z..u..m...a..'.s.. .H..e..a..d..,. .c..r.y..s..t.a..l.-.l.i.t.h..ic.. .a..s..h..-.f.l.o..w... .t.u..f.f. .(.e..a..r.l.y. .M...i.o..c..e..n..e..).............................................. 11 Tmr - Rhyolite of Montezuma's Head, rhyolite, rhyodacite, and minor dacite flows, flow breccias, and plugs (ear.l.y.. .M...io..c..e..n..e..)........................................................................................................................................... 12 Tmt - Rhy.o..l.it.e.. .o..f. .M...o..n..t.e..z..u..m...a..'.s.. .H..e..a..d..,. .t.u..f.f. .a..n..d.. .t.u..f.f. .b..r..e..c.c..i.a.. .(.e..a..r.l.y.. .M...i.o..c..e..n..e..)........................................................ 12 Tmb - Rhy..o..l.it.e.. .o..f. .M...o..n..t.e..z..u..m...a..'.s.. .H..e..a..d..,. .p..o..r..p..h..y.r.i.t.i.c.. .b..a..s..a..l.t. .o..f. .D..i.a..b..l.o.. .M...o..u..n..t.a..i.n..s. .(..e..a..r.l.y. .M...i.o..c..e..n..e..).......................... 12 Tmd - Rhy..o..l.it.e.. .o..f. .M...o..n..t.e..z..u..m...a..'.s.. .H..e..a..d..,. .d..a..c..i.t.e.. .o..f. .t.h..e.. .A..j.o.. .R...a..n..g..e.. .(.e..a..r.l.y.. .M...i.o..c.e..n..e..)................................................. 12 Tml - Little .A..j.o.. .M...o..u..n..t.a..i.n.. .m...o..n..z..o..g..r.a..n..i.t.e.. .(.e..a..r.l.y.. .M...io..c..e..n..e..)............................................................................................... 13 Tbu - Basa.lt. .a..n..d.. .b..a..s..a..l.t.i.c.. .a..n..d..e..s.i.t.e..,. .u..n..d..i.v..i.d..e..d.. .(.e..a..r.l.y.. .M...io..c..e..n..e..)..................................................................................... 13 Tdu - Dacit.e..,. .u..n..d..iv..i.d..e..d.. .(.e..a..r.l.y.. .M...i.o..c..e..n..e..)....................................................................................................................... 13 Tru - Rhyol.it.e.. .f.l.o..w...s..,. .d..ik..e..s..,. .a..n..d.. .f.e..l.s..i.c. .p..y..r.o..c..l.a..s..t.i.c. .r..o..c.k..s..,. .u..n..d..i.v..id..e..d.. .(..e..a..r.l.y. .M...i.o..c..e..n..e..)..................................................... 13 Ttu - Growl.e..r. .M...o..u..n..t.a..i.n.. .R..h..y..o..l.i.t.e..,. .w..e..l.d..e..d.. .t.u..f.f. .(.e..a..r.l.y.. .M...i.o..c..e..n..e..)...................................................................................... 13 Tdc - Danie..ls.. .C...o..n..g..l.o..m...e..r.a..t.e.. .a..n..d.. .a..s..s.o..c..i.a..t.e..d.. .l.a..k..e.. .d..e..p..o..s.i.t.s.. .(.e..a..r.l.y.. .M...i.o..c..e..n..e..)................................................................ 13 Childs Latit.e.. .a..n..d.. .c..o..e..v.a..l. .p..l.u..t.o..n..i.c.. .r.o..c..k.s.......................................................................................................................... 14 Tcu - Chil.d..s. .L..a..t.i.t.e.. .a..n..d.. .c..o..e..v..a..l. .p..lu..t.o..n..i.c.. .r.o..c..k..s..,. .u..n..d..iv..i.d..e..d.. .(.e..a..r.l.y.. .M...i.o..c..e..n..e..)........................................................... 14 Tcd - Chil.d..s. .L..a..t.i.t.e.. .a..n..d.. .c..o..e..v..a..l. .p..lu..t.o..n..i.c.. .r.o..c..k..s..,. .a..u..g..it.e.. .l.a..t.i.t.e.. .d..i.k..e..s. .(..e..a..r.l.y. .M...i.o..c..e..n..e..)............................................... 14 Tcl - Child.s.. .L..a..t.i.t.e.. .a..n..d.. .c..o..e..v..a..l .p..l.u..t.o..n..i.c.. .r.o..c..k..s.,. .C...h..i.l.d..s. .L..a..t.i.t.e.. .f.l.o..w...s. .a..n..d.. .f.l.o..w... .b..r.e..c..c..ia..s.. .(.e..a..r..ly.. .M...i.o..c..e..n..e..).................. 14 Tca - Chil.d..s. .L..a..t.i.t.e.. .a..n..d.. .c..o..e..v..a..l. .p..lu..t.o..n..i.c.. .r.o..c..k..s..,. .a..u..g..it.e.. .a..n..d..e..s..i.t.e.. .(.e..a..r.l.y.. .M...i.o..c..e..n..e..).................................................. 14 Tcb - Chil.d..s. .L..a..t.i.t.e.. .a..n..d.. .c..o..e..v..a..l. .p..lu..t.o..n..i.c.. .r.o..c..k..s..,. .o..li.v..i.n..e..-.a..u..g..i.t.e.. .b..a..s..a..lt. .a..n..d.. .a..l.k..a..l.i.
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