Weaver, Scott Glacier

SaltonstallandMt. Innes-TaylorinFig. 10.19 Doumani and Minshew (1965) found boulders of greenish tillite in the moraines on the northern slopes of these mountains. The tillite contains faceted and striated pebbles and cobbles of metamorphic, granitic, and sedimentary rocks and resembles the Buckeye Tillite of the Horlick Mountains. These boulders were presumably transported and deposited by the Permian ice sheet although tillite is not present in outcrop at these locations. 

Sunny Ridge located about 5 km southwest of Mt. Weaver in Fig. 10.19 contains a thick unit of black shale with interbedded sandstone and coal. These sedimentary rocks are about 160 m thick and dip southwest at 40°. The shale contains leaves of Glossopteris and petrified tree trunks up to 20 cm thick. The relation of the Sunny-Ridge section to the stratigraphy of Mt. Weaver is not understcx)d. 

The Beacon rcx ks on Mt. Blackburn, legated close to the confluence of the Van Reeth Glacier with the Scott Glacier north of the LaGorce Mountains, occur at three sites labeled A, B, and C by Doumani and Minshew (1965). At Icxrdity C a sequence of sandstone, conglomerate, and black shale is capped by a layer of massive till about 15 m thick. This till 

Cyclical deposits of sandstone, shale and coal. Each cycle starts with a massive sandstone bed featuring large-scale trough cross-bedding and shale clasts at the base. Fossil leaves of Glossopteris and petrified tree trunks up to 60 cm in diameter are common, many are still upright. A quartz-pebble conglomerate occurs at the base of this formation Disconformity 

Massive sandstone with large-scale cross-bedding and ripple marks. The sandstone contains intraformational conglomerates composed shale clasts and burrows of crustacians or worms (Vialov 1962). This unit grades upward into shale and contains two coal beds in the upper 15 m 

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Fig. 6.12 The Scott Glacier flows north from the polar plateau and discharges ice into the Ross Ice Shelf. The Bartlett and Albanus glaciers are its principal tributaries. The major mountain ranges adjacent to the Scott Glacier are the La Gorce Mountains at its head and the Tapley Range east of its mouth. In addition, the map identifies Mt. Weaver, Mt. Wyatt, Mt. Gardiner, and Mt. Blackburn. The valley of the Leverett Glacier is located east of the Scott Glacier and drains the Harold Byrd Mountains to be discussed in Section 6.5 (Adapted from Mirsky 1969)...

The Beacon rocks on Tillite Spur in the valley of the Olentangy Glacier (Fig. 7.2) were divided into the same three formations that Doumani and Minshew (1965) described on Mt. Weaver in the Scott Glacier area ... 

Mt. Early (2,720 m) in Fig. 16.43 is located south of Mt. Weaver at the head of the Scott Glacier in the Queen Maud Mountains. It is the most southerly volcano on Earth located at 87°04 S and 153°46 W. Although Mt. Early was discovered in 1934, it was first described by G.A. Doumani and V.H. Minshew who worked in the area during the 1962/63field season (Section 10.4.2 Doumani and Minshew 1965). Mt. Early was visited again during the 1978/79 field season by a geological field party led by E. Stump (Stump et al. 1980). 

Fig. 16.43 Mount Early and Sheridan Bluff are located south and north, respectively, of Mt. Weaver at the head of the Scott Glacier in the Queen Maud Mountains. This area is only about 325 km from the geographic South Pole. The geology of this area was described in Sections 6.4 and 10.4.2 based on fieldwork by Doumani and Minshew (1965), Minshew (1967), and Stump et al. (1980) (Adapted from Stump et al. (1980))...

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