Thinigaon Gr

"The term Thinigaon Formation was introduced in Thakkhola by Bodenhausen et al. (1964) and later adopted by Bassoullet and Mouterde (1977) to include Lower Triassic ammonite-bearing limestones ("member A''), mid-Triassic marls to marly limestones ("member B'') and Upper Triassic mudrocks ("member C''). Because these three members have long been recognized as independent formations (i.e., Tamba Kurkur Fm, Mukut Fm and Tarap Fm of Fuchs, 1977; Fuchs et al., 1988), the Thinigaon was elevated to group rank (Garzanti and Pagni Frette, 1991), thus representing a broad equivalent of the Induan to mid- Rhaetian Lilang Supergroup of the N.W. Himalaya

(Garzanti et al., 1995)."

Upward succession of Tamba Kurkur Fm (two and a half cycles of pelagic limestone/shale), Mukut Fm (marl), Tarap Fm (siltstone), and Yak Kharka Fm (coral limestone, then siltstone).