160°W 85°S 150°W 140°W

Refer ences 180° Explan ation

200 Ross Ice Sh elf Borg, S.G., 1983, Petrology and geochemistry of the Queen Maud Batholith, central Transantarctic 200 Mountains, with implications for the Ross Orogeny, in Proceedings of the International Symposium Ross Sea on Antarctic Earth Sciences, R.L. Oliver, P.R.. James, and J.B. Jago, eds., Australian Academy of 400 Glacial T ills and Moraines y Q m

East r Science, Series B. no. 4, p. 165-169. West Antarctica ? C l 90°E 90°W Borg, S.G., 1980, Petrology and geochemistry of the Wyatt Formation and Queen Maud Batholith, rn a e t

Upper Scott Glacier Area, Antarctica, M.S. Thesis, University of Arizona, 101 p. 600 O'Brien Pk. a A 400 670 Q m

? Weddell Sea u OCg 400 m Q

Borg, S.G., and DePaolo, D.J., 1994, Laurentia, Australia, and Antarctica as a Late Proterozoic 200 oi c supercontinent: Constraints from isotopic mapping, Geology, v. 22, p. 307-310.

u I

y Davis, M.B., 2001, Subglacial morphology and structural geology in the southern Transantarctic n ce Basalti c Vo l c a nic R o c k s

r CZv 400 0° OCg Ce no z Part of the McMurdo Volcanic Group of LeMasurier and Thomson (1990). Mountains from airborne geophysics, M.S. Thesis, The University of Texas at Austin, 133 p. 600 Mt. Rigby

600 d 950 At Mt. Early olivine basalts in a moberg or small volcano. At C w S t

er ti a Sheridan Bluff are alkaline basalt and olivine tholeite sills and flows. Total

Doumani, G.A., and Minshew, V.H., 1965, Geology of the Mount Weaver area, Queen Maud s r

200 T

Mountains, Antarctica, in Geology and Paleontology of the Antarctic, J.B. Hadley, ed., Antarctic S eam thickness is approximately 500 m (Stump et al., 1980).

e

Research Series, v. 6, Washington D.C.: American Geophysical Union, p. 127-139. 1750 Mount Goodale 1000 c

2570 OCg o

n Mt. Salisbury

1000 OCg 1000 972 Encarnacion, J. and Grunow, A., 1996, Changing magmatic and tectonic styles along the paleo-Pacific 800 t A

Supporting c

oi c margin of Gondwana and the onset of early Paleozoic magmatism in Antarctica, Tectonics, v. 15, t 1400 Q m 400

Party Mtn. z Bea con S u per g r o up and F e r rar G r o u p

no. 6., p. 1325-1341. 86°S G JPu 1800 Mt. Dort 400 C p Und iff e r entiated 2000 1200 1000

2250 1000 H

l ur ass i OCg G Basal tillites overlain by more than 800 m of glacial, fluvial, and lacustrine Fitzgerald, P. G., 1992, The of Southern Victoria Land: The application a 200

600 1000 Mes o a r shale and siltstone with some calcareous horizons and coal beds. of fission track analysis to a rift shoulder uplift, Tectonics, v. 11, no. 2, p. 634-662. 1000 OCg 1600 D o n- J

U Mt. Pulitzer l L C p l Glossopteris present. Dolerite sills and flows intrude and overlay the 3000 c 1000 a 2156 Mt. Hamilton 600 d

1410 T i

a e sedimentary sequence (Katz and Waterhouse, 1970; Katz, 1982).

Fitzgerald, P.G., and Stump, E., 1997, Cretaceous and Cenozoic episodic denudation of the 2000 C w a OCg i

p OCg B m

U l

Transantarctic Mountains, Antarctica: New constraints from apatite fission track thermochronology 2000 v y r

e e D D c

1200 U y r C l e in the Scott Glacier region, Journal of Geophysical Research, vol. 102, no. B4, p. 7747-7765. Mt. Vaughan D U e 400 r d

1600 3140 P 1400 i M 1000 1000 OCg 800 r M

800 o K ukr i E r osion S u rface Heintz, Greta M., 1980, Structural geology of the Leverett Glacier area, Antarctica, M.S. Thesis, e e t 1400 C w u s U (local variation 2200-3700 m a.s.l..) Arizona State University, Tempe, 159 p. 1600 . C l

3711 n t D OCg? r

A n Q m lb t C p t

a a n Mt. Gould a Katz, H.R., 1982, Post-Beacon tectonics in the region of Amundsen-Scott Glaciers, Queen Q m u 2385 i C w C w Q m s i

OCg G n Maud Range, Antarctica, in Antarctic Geoscience, Symposium on Antarctic Geology and 3400 2400 G C l 600 1600 OCg l 800 J P u 1000 a s 400 JPu c vi c Geophysics, International Union of Geological Scientists, C. Craddock, ed., The University i Cox Peaks Mt. Zanuck e l 2518 C w r Mt. Webster of Wisconsin Press, p. 827-834. pCl a 1610

pCl rd o N 1000 OCg Bender Mts. C w C w c O i U D C l Katz, H.R., and Waterhouse, B.C., 1970, Geological reconaissance of the Scott Glacier area, 3520 JPu 2000 Gra n ite Harbo r Intr u s i v e C o m p l e x l i OCg 1800 1200 Or 3830 g (locally called the Wisconsin Range Batholith and the Queen Maud south-eastern Queen Maud Range, New Zealand Journal of Geology and Geophysics, v. 13, no.4, J P u s an Pipe Pea e Mt. Fielder JPu OCg Mt. Andes 1140 Mt. Kristensen 2524 Batholith) Continental batholith which spans the length of the p. 1030-1037. 3460 e r Berry Peaks 600 3000 JPu OCg C l n OCg OCg 1600 1260 Transantarctic Mountains. Rock types include granite, quartz monzonite, k 1004 3800 s Mt. Mahan Katz, H.R., and Waterhouse, B.C., 1970, Geologic Situation at O'Brien Peak, Queen Maud Mt. Walshe OCg tonalite, diorite, hornblende gabbro. Monzogranite and grannodiorite are Range, Antarctica, New Zealand Journal of Geology and Geophysics, v. 13, no 4, p. 1038-1049. P 2050 1800 the most common rock types (Borg, 1983). J P u 3200 l Gothic Mts. a OCg 2860 Mirsky, A., 1969, Geology of the Ohio Range- area, American Geographical Society 1600 1400 1200 OCg Mt Warden Mt. Beazley t n 2000 OCg 1600 2410 e o OCg E Map Folio Series, folio 12, plate XVI. 2800 JPu

3360 a Glacier 1800 JPu 800 Griffi th s 2600 s Ack erm an F o rma t ion

1800 OCg 85°S C a u Murtaugh, J.G., 1969, Geology of the Wisconsin Range Batholith, Transantarctic Mountains, 2000 Shale and wacke or arenitic sandstone interbedded with silicivolcanic OCg Q m c Q m c New Zealand Journal of Geology and Geophysics, v. 12, no. 2&3, p. 526-551. t porphyry tuffs and flows. Several pebble conglomerate horizons. Sedimentary 3000 Mt. Gardiner OCg C w 2479 2400 OCg zo i structures include laminations, ripple-drift structures, rip-up clasts, soft OCg 1600 JPu a Q m LeMasurier, W.E. and Thomson, J.W., 1990, Volcanoes of the Antarctic Plate and Surrounding o U D a Dzema sediment deformation structures, and < 5 cm high tabular cross bedding. 2200 C w OCg 130°W e Oceans, Antarctic Research Series, v. 48, American Geophysical Union, Washington D.C., 487 p. OCg u l JPu ea Stanford2860 Plateau Peak Total thickness is at least 2000 m (Stump, 1983; Wareham et al., 2000; 1400 t 2570 Mt. Ratliff a 1800 la r 2520

Mt. Blackburn P OCg P Encarnacion and Grunow, 1996). 3276 ia OCg Rowell, A.J., Gonzales, D.A., McKenna, L.W., Evans, K.R., Stump, E., and Van Schmus, W.R., 1997, n W r OCg 3313 pCl JPu o 1000 Lower Plaeozoic Rocks in the Queen Maud Mounatins: Revised ages and significance, in The f 2400 p li Phelger Antarctic Region: Geological Evolution and Processes, Proceedings of the VII International Q m a 2600 1600 V C 2400 Dome Symposium on Antarctic Earth Science, C.A. Ricci ed., Terra Antarctica Publishing, p. 201-207. a 2600 Q m 1600 n R e n Q m e m 2400 C w 1600 th Stump, E., 1995, The Ross Orogen of the Transantarctic Mountains, Cambridge University Press, 283 p. 2000 2670 G W y a t t F o r m a t i o n l Kansas Glacier ri a C w JPu R ac

b Massive aphanitic porphyry with volcanic and possibly hypabyssal o 1800 ie b OCg r 1200 2000 p C l 1200 phases (Stump, 1995; Encarnacion and Grunow, 1996). Stump, E., 1985, Stratigraphy of the Ross Supergroup, Central Transantarctic Mountains, in Geology C w is C w o 1000

of the Central Transantarctic Mountains, M.D. Turner and J.F. Splettstosser, eds., Antarctic Research C w n e Ca m

R 1800 S G OCg

Series, American Geophysical Union, v. 36, p. 225-272. Ackerman 1400

2930 l c a p C l

Fault C a OCg c 2000

80 i 2800 OCg e 1400 C w o o e n Stump, E., 1983, Type Locality of the Ackerman Formation, La Gorce Mountains, Antarctica, in OCg C w r 1640 L e v e r e t t F ormation

1800 Eblen Hills C l Antarctic Earth Science, Proceedings of the IV International Symposium on Antarctic Earth t Q m 1800 e More than 2500 m of crossbedded sandstone that grades upwards into

Mt. Grier Mount Mooney p C l

t 2790 Sciences, R.L. Oliver, P.R. James, and J.B. Jago, eds., Australian Academy of Science, p. 170-174. 87°S 3037 OCg 1600 pCl

2600 1400 shale and limestone. The sedimentary sequence is overlain by and 2200 d 2010 p C l 1600 1600

2400J P u 3000

2000 p C l t OCg interbedded with silicic volcanic rocks. Metamorphosed in some areas 2973 2000

OCg G Stump, E., 1982, The Ross Supergroup in the , in Antarctic Geoscience, OCg y C w (Stump, 1983; Wareham et al., 2001). Ajacicyanthus aequitriens and

Symposium on Antarctic Geology and Geophysics, International Union of Geological Scientists, K OCg l Q m Quartz Hills Pararaia? present (Rowell et al., 1996). 2600 CZv l Q m

e

C. Craddock ed., The University of Wisconsin Press, Series B. no. 4, p. 565-573. 2000 p C l

J P u a i Mt. Paine 2000 2778 n 3330 G

OCg Davis Hills 3000 Mt. Weaver 1400 c OCg Stump, E., and Fitzgerald, P.G., 1997, Geology and regional significance of the Cox Peaks roof 2330 G

OCg l 1400 C w l

JPu a OCg i 2200 1800 pendant, Central Scott Glacier area, Antarctica, in The Antarctic Region: Evolution and Processes, 2000 P arty F o r m a t i o n c C w 1600 C p

CZv i 2400 2800 OCg OCg a Proceedings of the VII International Symposium on Antarctic Earth Science, C.A. Ricci ed., 160°W e e Pelitic and calcareous schist, gneiss, quartzite, and marble (Stump, 1995; r Q m 1600 Q m

Terra Antarctica Publishing, p. 209-212. 2720 2200 Heintz, 1980; Vogel et al., 2000).

r c Q m 3400 OCg pCl C w 1600 2691 Mt. Early 2410 W i 1800 s c o

Stump, E., Sheridan, M.F., Borg, S.G., and Sutter., J.F., 1980, Early Miocene subglacial basalts., i n s i e Gardiner Ridge 3000 n R a n g OCg OCg the East Antarctic ice sheet and uplift of the Transantarctic Mountains, Science, C w

2800 2400 Caloplaca Hills e 3610 2800 3000 vol. 207, p. 757-759. Q m OCg 2800 Graves 3000

2600 r p C l Nunataks 2670 1600 OCg Stump, E., Smit, J.H., and Self, S., 1986, Timing of events during the late Proterozic Beardmore 3000 Wisconsin Plateau 2400 La Gor ce F ormation Orogeny, Antarctica,: Geological Evidence from the La Gorce Mountains, Geological Society of p C l p C l 2600 2620 Greater than 2000 m of interbedded graywacke and shale and 2200 D C w America Bulletin, v. 97, p. 953-965. zoi c Q m U bria n metamorphic equivalents. Bedding is centimeter-scale. Sandstones show 2722 JPu 3000 D graded bedding, cross bedding and sole marks (Stump, 1982, 1995; Stump, E., Smit, J.H., and Self, S., 1985, Reconaissance Geological Map of the Mount Blackburn 2400 U JPu Stump et al., 1986). Quadrangle, Transantarctic Mountains, Antarctica, United States Geological Survey, Map A-12, OCg 2880 reca m D U roter o 1:250,000 scale. 2710 2400 U JPu P OCg D P 2600 U Qm JPu D U U D Wareham, C.D., Stump, E., Storey, B.C., Millar, I., Riley, T.R., 2001, Petrogenesis of the Cambrian 2000 C w 1800 D D Liv group, a bimodal volcanic rock suite from the Ross Orogen, Transantarctic Mountains, GSA JPu? 2320 1800 OCg U 2600 2600 Uni dent i f ied m eta m o r p h i c r ock s Bulletin, v. 113, no. 3, p. 360-372. 2930 Mt. Howe Q m Amphibolite, gneiss, schist, quartzite, phyllite (Stump, 1995; Borg and 2400 800

C w 2480 2 DePaolo, 1994; Heintz, 1980). 2200 Vogel, M.B., Stump, E., Wooden, J.L., and Ireland, T.R., 2000, Detrital zircon provenance of 2600 Metavolcanic Mountain 2000 Neoproterozoic sediments in Antarctica: Implications for Rodinian Reconstructions, GSA Annual Meeting Abstract With Programs, p. A-455. 120°W Uni dent i f ied non - g r a nit i c intrus i v e r ock s Q m (See Heintz, 1980) 2000

Expl anator y Notes OCg 2340 2600 2200 2000 2600 No Data Corresponding area USGS Antarctic Reconnaissance Series topographic maps (1:250,000, Polar 2400 Stereographic projection, standard parallel 80°14'S ) include: 1989, Mount Goodale #SV 1-10/6. 1985, Mount Blackburn #SV 1-10/11.

1964, Wisconsin Range #SV 1-10/8. 1964, Caloplaca Hills #SV 1-10/12. 3000 1967, Nilsen Plateau #SV 1-10/10. 1968, D'Angelo Bluff #SV 1-10/15. 2200 Map Symb ols 2800 Digital topographic map template created using the Antarctic Digital Database (ADD) Version 1.0, 1993, prepared by the British Antarctic Survey, Scott Polar Research Institute, World Conservation 3200 Centre, and the Scientific Committee on Antarctic Research. ADD Version 1.0 specifications: Normal fault showing Geologic Contact Polar Stereographic Projection, Standard Latitude 71°S, Central Meridian 0°, Spheroid WGS84. fault plane dip direction 2150 Elevation (m) 150°W 140°W 130°W 87°S 120°W 86°S Fault inferred 2200 Contour lines This map compilation is reconaissance-scale and is, therefore, meant to show spatial relationships U Fault showing relative movement between rock types and major structures rather than detailed structural or subsurface information. The Geology of t he Scot t-Reedy G l a ciers A r e a D Contour interval = 200 m accuracy of the compiled data is highly variable due to the number of data sources, variety of data collection methods, and errors inherent in combining data from different projections and datums. S o u t her n T r ansantar c t ic Moun t a ins, Ant a r c tic a Scale: Special thanks to Ed Stump and Scott Borg for their initial reviews of this map. This work funded by 0 km 10 km 20 km 30 km NSF-OPP 9615832 and 9319379. Compiled by M.B. Davis and D.D. Blankenship Institute for Geophysics, Jackson School of Geosciences, The University of Texas at Austin