Takrouna Formation

Each outcrop of Beacon rocks is unconformable to underlying pre-Permian basement rocks and the three formations identified in this table are not in contact with each other. The only exception is the basal breccia which grades into the overlying Takrouna Formation in the Neall Massif and at the DeGoes Cliff at the southern end of the Morozumi Range in Fig. 10.12. 

Ttiassic Section Peak Section Peak Vantage Hills Roberts Butte Unconformity Sandstone and conglomerate Fossil wood at Section Peak 

Permian Diamictite Lanterman R. Tillite and other glacial deposits 

Late Carbon-iferous Breccia DeGoes Cliff (Morozumi R.) Neall Massif Unconformity Non glacieil, clasts of local origin 

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The Section Peak Formation was deposited on the margins of Rennick basin after that basin was filled by sediment of the Takrouna Formation. The rocks of the Section Peak Formation resemble sedimentary rocks that occur at the top of the Lashly Formation in the Allan Hills (Table 10.2). Collinson et al. (1986) suggested that the Section Peak and Lashly formations are similar to the Late Triassic Falla Formation in the Beardmore and Shackleton glacier areas. 

Hamilton W, Hayes PT (1963) Type section of the Beacon Sandstone of Antarctica. US Geol Surv Prof. Paper 456-A l-18 Hammer WR (1986) Takrouna Formation fossils of northern Victoria Land. Ant. Res. Set. 46 243-247. Amer. Geophys Union, Washington, DC... 

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