n Alas - Alaska Division of Geological & Geophysical Surveys - State ...
n Alas - Alaska Division of Geological & Geophysical Surveys - State ... n Alas - Alaska Division of Geological & Geophysical Surveys - State ...
3 shows sl :udy are !as discussed) ~f the I LASKA mbeth J. Moll The Unalakleet quadrangle lies wholly within the Yukon-Koyukuk basln and is underlain chiefly by Cre- taceous sedimentary rocks and Cretaceous or lower Tertiary volcanic rocks (area 2, fig. 13; fig. 14) . P r-Ab?ceous volcanic and plutonic rocks crop out 0.. , :ural high between the Chiroskey and AnvIk faults ! central part of the quadrangle, and Quaternary ) upper Tertiary flood basalt mcurs along the ,11, = of Norton Sound in the southwestern part of the quadrangle. The pre-Cretaceous volcanic and plutonic rocks expased on the structural high between the Chiroskey and Anvik faults include altered basalt, the ege of which is uncertain but no younger thm Middle JumS- sic, and diorite and tonalite of Middle and Late Juras- sic ege (table 3). The basalt is faulted against JurassiC Figrae 13.-Areas in west-central Alaska discussed in Himmelberg, figures 15 and 16 (p. 27-30); 2, patton this volume. A listing of authorship, applicable figures and Moll, figure 14, table 3 (p. 24-27); 3, Patton and and tables, and article pagination (in parentheses) others, figure 17, table 4 (p. 30-32); 4, Sirrnm and relating to the numbered areas follows. 1, Loney and others, figure 18, table 5 (p. 32-34).
3 EUMN OF MAP UNITS WAmWARY OUAERNARY AMi?) TERTIARY LOWER TEVIARY WER AN0 L M R CRETACEOUS LOWER MESdrmC OR PALEOZMC DESCRIPTKRI OF MAP LINKS 0s SURFIUAL DEPOSil RY) OTb W L T (&JAW 9mARY) 1s UlY SHALE WLE. COAL (MIOCENE UR GtffiOCfE) Tg GRANITE (EARLY 1 WV VOLCANIC ROCKS ( \RY OA LATE CRETACEOUS) Ks SWSTONE SHALE (EARLY AND LATE CRETACEDUS) Kg GRAYWACXE, mU(KT0Ml (EARLY CRETACUXlS) Kv ANDESITE VOLCANKLPSnC ROMS (€AMY CRflAGEOVS) J1 TOHMlTE(JUWS Jd DWIRITE(NRA% hkm WSALT(MRLY N htEOZO(Cf - ContfftawAfm ,,, ~n(snsdwun • ~~R=~"~.A~oMIB My and numbw (m lrMs 3) I 14.--aenerallzed geologic map of northern part of UWeet quadrangle.
- Page 1 and 2: n Alas Accompli: ' I.S. GE OLOGI CA
- Page 3 and 4: I CONTENTS Page A bst raet ........
- Page 5 and 6: -- --A I ALASEU i nued rral expluru
- Page 7 and 8: ........ igure .JB. ;5~ercn map ox
- Page 9 and 10: . , ".,k a. ,.e ,\a 1 y U11 IIIUUII
- Page 11: THE UNITED STATES GEOLOGICAL SURVEY
- Page 15 and 16: ~ t I r n t S i m ~ ~ Alarr a ~ man
- Page 17 and 18: I -1977, RelImlnary documentat!on l
- Page 19 and 20: I I MaCenn, W. R., Perez, 0. J., an
- Page 21 and 22: were deslgned to impMve the accurac
- Page 23 and 24: Noatak Sandstom and is overlaln con
- Page 25 and 26: I (Nilsen and others, 1981a); (2) f
- Page 27 and 28: I that contains the Upper Devonian
- Page 29 and 30: who found Westeqaardodina sp., posb
- Page 31 and 32: Table 2 lists the means rtnd for th
- Page 33: ' Noatak Vdley (fig. 129. This ice
- Page 37 and 38: -om displacement of the cc tween th
- Page 39 and 40: I US I Surlicial dcnrrua,ts [~dater
- Page 41 and 42: I Plafker, George, Hudson, Travis,
- Page 43 and 44: !omlensed iring vapors generated by
- Page 45 and 46: and the thinning. -upward cycles .,
- Page 47 and 48: Kellum, L. B., Devless, S. N., and
- Page 49 and 50: 1912 sample (a mediumwey pumice blo
- Page 51 and 52: various Utholagic units present Thu
- Page 53 and 54: fault, and Its depositional basemen
- Page 55 and 56: suggested by coplanar foUaticm and
- Page 57 and 58: 1 slgnlficarrtly more umnlum (73&1,
- Page 59 and 60: ecrSigtallized catadastic matrix of
- Page 61 and 62: analyzed to determine whether Immob
- Page 63 and 64: are tgplcd of both ocean-floor basa
- Page 65 and 66: & Fclsic in~rutirt rucks 0 Eio~ite
- Page 67 and 68: are Lrdlcated by coexisting @&ite+q
- Page 69 and 70: (Mg3.09 pe2+ 0.69 pe 0.~1~0.01~~0.9
- Page 71 and 72: westward into a narrow band that ex
- Page 73 and 74: EXF'lANATIOW 66600' Contan-Apprnimn
- Page 75 and 76: ! few fold closures are preserved.
- Page 77 and 78: even thickness and conform to irreg
- Page 79 and 80: (Alnus ap.), heaths (Ericaceae, + E
- Page 81 and 82: terrane extends at least 300 krn to
- Page 83 and 84: Table 19.--6tneral petrography of M
3<br />
EUMN OF MAP UNITS<br />
WAmWARY<br />
OUAERNARY AMi?)<br />
TERTIARY<br />
LOWER TEVIARY<br />
WER AN0 L M R<br />
CRETACEOUS<br />
LOWER MESdrmC<br />
OR PALEOZMC<br />
DESCRIPTKRI OF MAP LINKS<br />
0s SURFIUAL DEPOSil RY)<br />
OTb W L T (&JAW 9mARY)<br />
1s UlY SHALE WLE. COAL (MIOCENE UR GtffiOCfE)<br />
Tg GRANITE (EARLY 1<br />
WV VOLCANIC ROCKS ( \RY OA LATE CRETACEOUS)<br />
Ks SWSTONE SHALE (EARLY AND LATE CRETACEDUS)<br />
Kg GRAYWACXE, mU(KT0Ml (EARLY CRETACUXlS)<br />
Kv ANDESITE VOLCANKLPSnC ROMS (€AMY CRflAGEOVS)<br />
J1 TOHMlTE(JUWS<br />
Jd DWIRITE(NRA%<br />
hkm WSALT(MRLY N htEOZO(Cf<br />
- ContfftawAfm<br />
,,, ~n(snsdwun<br />
• ~~R=~"~.A~oMIB My and numbw (m lrMs 3)<br />
I 14.--aenerallzed geologic map <strong>of</strong> northern part <strong>of</strong> UWeet quadrangle.
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