Slide 1. Looking east from the Alverson/Fossil Canyon drainage up a side canyon. White unit is the White Fanglomerate (Morgan and Morgan, 2017a) of the Winker and Kidwell's (1996) Split Mountain Group (SMG). Red Unit is the Red Fanglomerate (Morgan and Morgan, 2017a) of the SMG that interfingers with the volcanics of the Alverson Canyon Formation (Ruisaard, 1979) (black unit) of the SMG. All three units of the SMG form an unconformity with the Jurassic White Cross Gneiss (Morgan and Morgan, 2015) (brown unit) to the left in the photo. The small, light tan butte in the foreground contains a contact between marine and non-marine units of the Viejo Formation (Morgan and Morgan, 2016) of the Imperial Group. This contact is repeated along the ridge line, at the end of the word California, in the slide (Morgan and Morgan, 2017a).
Kidwell and Winker (1996) describe the Andrade Member of the Latrania Formation, Imperial Group as a marine progradation (transgression) over the non-marine fanglomerate of their Garnet Formation, Split Mountain Group in the Coyote Mountains (CM). Our detailed mapping in the CM indicates that their Garnet Formation is composed of several (4+) distinct fresh-water fanglomerates. We also have divided their Andrade Member into several (8+) transgression-regressional (T-R) marine (Imperial Group) sequences that bracket some of our fresh-water fanglomerates. The transgressions have a recognizable, predictable and repeated marine sedimentary sequence consisting of a basal conglomerate followed by sandstone and then a mudstone. These marine sedimentary sequences are capped by unconformities representing regressions. Imperial marine sediments interfingers with one of our freshwater fanglomerates. Fresh water limestones are associated with at least two of our fanglomerates. Our fresh-water fanglomerates and T-R marine sequences make up our Viejo Formation (VF).The lower part of the VF has a siltstone (Woodring's Outcrops [ Morgan and Morgan, 2015]) that is interbedded with basalts of the Alverson Formation (17 Ma, Morgan et al., 2012). The youngest member of the VF has a distinctive basal conglomerate ( Dark Cuesta Member [DCM]), described as having resistant, well-rounded, quartz rich pebbles in a course, granitic, arkosic matrix with granitic lithic fragments. The matrix and lithic fragments are responsible for the desert varnish that is often found on this member. We believe this youngest basal conglomerate may be, in part, reworked from a run out debris flow that came from an unidentified granitic terrane. When this basal conglomerate was being deposited, younger VF already covered the CM. Winker and Kidwell (1996) describe the Latrania Formation as a marine turbidite section in a subsiding basin in the Fish Creek-Vallecito-Split Mountain area. The VF is made up of marine transgressions and regressions intermingling with fresh-water sediments deposited at sea level on the subsiding CM. An early part of the VF was deposited in the Basin and Range extensional environment when the CM were in the State of Sonora,
The aromatic arum commonly known as Sweet Flag (Acorus Calamus L. of the Araceae) is an ancient and widely used medicinal nlant. The nlant'« nnnopnt.t<.chn n ,-i,;,~~,.â"¢ i i utilized as a me those relating to the respiratory and digestive systems. Also, stimulant particularly Indian tribes of the western interior of North America. European peoples have employed the rhizomes as a flavoring agent in liquors, gin, beer and ice cream; they have also utilized the plant in perfumes, snuff and hair powder. New Englanders still continue to sugar and slice rhizomes for confectionary. Southern blacks used the rootstocks as a condiment; their consumption of the plant was mentioned in the classic folklore stories of "Uncle Remus" (Harper, 1936).
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