Pg. 42-47, pls. Paveloff Siltstone Member, upper member (of 2) of Chinitna Formation. Massive arenaceous dark-gray siltstone constitutes major part of member. Thick sandstone interval present at base of nearly all sections, and large ellipsoidal limestone concretions and lenticular beds of limestone occur throughout member. Thin beds of sandstone interlayered with the siltstone above the massive basal sandstone. Thickness 900 to 1,350 feet. Notable exposures on Front Mountain (type), and also on shores of Iniskin, Oil, and Chinitna Bays. Thicker sections near central part of area and thinner sections at both north and south ends of mapped area. Thinner sections are unconformably overlain by Naknek Formation. Conformably overlies Tonnie Siltstone Member of Chinitna Formation. North of Chinitna Bay, is in fault contact with Talkeetna Formation. Age is Callovian [Late Jurassic in this paper] based on fossils identified by R.W. Imlay. Report includes fossil lists and localities.
Type section: begins about 1,800 ft N. 40 deg. W. of Front Mountain and continues upstream for 750 ft in strata that dip 20 to 25 deg. SE. Named from Paveloff Creek, [an] easterly tributary of Bowser Creek, along which member is exposed in nearly vertical cliffs on the west face of Front Mountain, Iniskin-Tuxedni region, southwestern AK.

Source: US geologic names lexicon (USGS Bull. 1350, p. 559-560); supplemental information from GNU records (USGS DDS-6; Menlo GNULEX).

Age of Paveloff Siltstone Member of Chinitna Formation is Middle Jurassic (Callovian).

Source: GNU records (USGS DDS-6; Menlo GNULEX).