... and Lithoprobe line 86-5, tied to outcrops and two wells. The mid-Devonian to Upper Carboniferous – Permian basin fill is 6–7 km thick and represents three extensional phases with intervening and succeeding compressive phases. The mid-Devonian McAdams Lake Formation was deposited in a local half-graben during...

... date from the volcanic rocks of 491 ± 25 Ma (Cormier and Kelley 1964; Keppie and Smith 1978 ) is thus considered unreliable. The earliest basin fill in the Magdalen basin in Cape Breton Island is recorded in the McAdams Lake Formation (Fig.  2 ), a sequence of lacustrine and coarser basin-margin...

... unconformities in the Charlie Lake Formation, and the interval of this study – between the “A” marker and the top of the Halfway Formation. Previously published work on the Charlie Lake Formation has tended to focus either on regional correlations (e.g. Hess, 1968 ; McAdam, 1979 ; Dixon, 2002a ), local...

..., Assessment Report 1970 (7 cross-sections) , 31 p. McAdam , K.A. 1979 . Charlie Lake Formation, preliminary gamma log correlations (stratigraphic cross-sections) . Province of British Columbia, Ministry of Energy, Mines and Petroleum Resources, 7 sheets . ...

...Allison L. Bent; Stephen Halchuk; Veronika Peci; Karl E. Butler; Kenneth B. S. Burke; John Adams; Nawa Dahal; Sylvia Hayek ABSTRACT Beginning in March 2012, inhabitants of McAdam, New Brunswick, reported feeling and/or hearing many earthquakes within a 1 – 2 km 2 area of the village. The largest...

...Figure 3. Dip-oriented cross-section through the Charlie Lake Formation, Kobes, Halfway, Blueberry and Inga petroleum fields. Note that member picks follow those presented in McAdam (1979) . Location of section illustrated in Figure 4 . The datum selected here is the base of the “A-marker...

... = Formation; Mbr = Member. This study is primarily based on four long cores drilled in the Horn River Basin. The locations of these wells (EOG Maxhamish D-012-L/094-15O, Imperial Komie D-069-K/094-O-02, Nexen Gote A-27-I/094-O-8, and ConocoPhillips McAdam C-87-K/094-O-7) are shown in Figure 1...

...-meromictic lake sediments in the Seward Peninsula, Alaska ( Dickinson 1988 ). The basaltic flows that dammed regional drainage, resulting in lake formation, also served as a source of Fe in lake waters and pore-fluid ( Dickinson 1988 ). Hollow magnetite spherules up to 0.9 mm in diameter with a proposed...

... surfaces are present within all three formations consid- ered here, especially the Charlie Lake Formation. This conclu- sion differs from many earlier published studies of the Charlie Lake, with the notable exception of the published cross-sec- tions of McAdam (1979). Core examination of cores cut...

... subsurface cores that span the complete Llandovery interval. The Llandovery succession of the Michigan Basin measures between 140 m and 265 m thick and is represented by three lithostratigraphic groups: the Cataract (Manitoulin formation and Cabot Head Shale), the Burnt Bluff (Lime Island, Byron...

... been recognized in the Triassic succession, especially in the Upper Triassic Charlie Lake Formation ( Hess, 1968 ; McAdam, 1979 ; Dixon, 2002a ). However, in the Lower and Middle Triassic fewer basin-wide unconformities have been identified (e.g., Davies et al., 1997 ). Fig. 1. Regional...

... formations, basal units of the lake identified as igneous in origin and affected by aqueous alteration ( Gupta et al. 2022 ; Mangold et al. 2022 ; Sun et al. 2022 ). Hydrated Ca- and Mg-sulfates suggest contact with briny waters ( Meslin et al. 2022 ). Perseverance has already taken core samples...

... of the Huronian to students from the University of Western Ontario, from an exposure of the Lorrain Formation on La Cloche Mountain, near Whitefish Falls, Ontario. Photos A and B by D. Long; photo C by R. Rainbird. In South Africa, Grant documented Archean glacial deposits in the Pongola Supergroup...

... and quartzite ( Paterson et al. 1998 ). The Douglas Water Arenite, Dovestone Red Bed, Fish Bed and Gully Red Bed formations are interpreted as having been deposited on a floodplain with semi-permanent lakes that intermittently dried out. Terrestrial plant spores ( Wellman & Richardson 1993 ; Molyneux...

..., recent studies on jarosite formation on Earth have shown that the mineral can form in diverse acidic environments, including acid-saline lakes in hyperarid climates ( Schaefer et al., 2003 ), acid mine drainage systems ( Swayze et al., 2008 , and references therein), “acid fog” on the margins of volcanic...

...., (2017). 640 Redox stratification of an ancient lake in Gale crater, Mars. Science, 356(6341), eaah6849. DOI: 641 10.1126/science.aah6849 642 643 Jibrin, Z. B. ; Achilles, C. N. ; Rampe, E. B. ; Thorpe, M. T. ; McAdam, A. C., (2024). 644 Characterization of Poorly Ordered Materials in Mars Analog...

... Botryococcus and Circulisporites , for example in the Heads of Ayr section, suggests that it occupied a non-marine palaeoenvironment, like the other palynomorphs described here. Sedimentological analysis indicates that lakes and ponds in the Ballagan Formation palaeoenvironment were often ephemeral...

... ponepunctus (Matthew, 1901 ) from the Chelsey Drive Formation, north shore of East Bay near Eskasoni, Bras d'Or Lake, Cape Breton Island, Nova Scotia, Ctenopyge linnarssoni Zone; all pygidia; all scale bars = 1 mm. All specimens are paralectotypes. (a, b) NBMG 4386/12 (latex cast from external mould...