Conglomerate
Collected from blocks moved during road construction. Have been moved perhaps 200 yards. More quartzite and igneous and crystaline metamorphic rocks than at Sternenberg sampling site. <br /><br />Thin Section Coarse to fine (7-.1 mm) poorly sorted grains of feldspar and quartz varying from angular to sub angular in a calcite matrix. <br /><br />
Oct., 11, 2013
Western Minerals, lnc.
FM-11
Sandstone
Sandstone with ripple marks and cross bedding and strong flute casts along surface indicating mid-high energy. Poorly sorted coarse sandstone with ripple marks, cross bedding and strong flute casts, as well as small pebbles that vary from angular to rounded.<br /><br /> Thin Section: Fine (.3-.1 mm) poorly sorted grains of quartz, feldspars, and pyroxenes, varying from angular to sub rounded, closely packed in a mud matrix where applicable. <br /><br />
Oct., 11, 2013
Western Minerals, lnc.
FM-10
Shale
Shale, foliated, and bearing organic matter, from the interbeds between sandstone layers. Fine grained laminated sands between shales were uncollectible, but present. Friable and fragile.
Thin Section:
Very fine to fine grain, poorly sorted quartz, feldspar, and pyroxene varying from sub rounded to angular.
Oct., 11, 2013
Western Minerals, lnc.
FM-9
Fine Banded Sandstone
Very fine grained sandstone and silty shale noted between shale and dark, fine grained sandstone (sample 4 &5).
Thin Section:
Very fine sized sub rounded grains of pyroxene, quartz, and feldspar in a calcic matrix.
Oct., 11, 2013
Western Minerals, lnc.
FM-8
Conglomerate
Poorly sorted, coarse grained conglomerate; bearing chert, quartzite and granitoid fragments in calcite cement, with an odd mica flake indicating very short transport. The facies that this rock is representative of is uncommon. Conglomerate beds at outcrop are approximately 10cm thick.<br /><br />Thin section: fine grains of angular, mainly plagioclase and quartz closely packed with little matrix visible, but a mud matrix where applicable.
Oct., 11, 2013
Western Minerals, lnc.
FM-7
Light Sandstone
Coarse grained mainly quartz sandstone with minor lithic and mud incorporated. Cross bedding present. Note the larger grain size of the sample, as well as the grains composed of conglomerate material indicating reworking of older sediments. Present still is the felsic material indicating more recent rocks being broken down as well. Cross bedding present.<br /><br /> Thin section Fine (1-1.5 mm) sub angular crystals of quartz, feldspar, and pyroxene packed against each other in a mud matrix.
Oct., 11, 2013
Western Minerals, lnc.
FM-6
Sandstone
Gray, medium to coarse grained quartz-rich lithic sandstone with rip up clasts and mud rich areas present. <br /><br />Thin Section Fine, (.7-.1 mm) sub angular crystal fragments floating in mud matrix, with feldspar, quartz, and pyroxene present.
Oct., 11, 2013
Western Minerals, lnc.
FM-5
Shale
Organic rich to moderate black to light grey shale. Some parts of FM-4 are silty shale. Minor rust stains are present on lighter samples. Representative of upper portion of a turbidite sequence.
Thin Section
Very fine (<.1 mm) grains are present in this sample, along with staining bands. Note the fair sorting, this sample is better sorted than the others of this suite, but not as well sorted as a typical shale.
Oct., 11, 2013
Western Minerals, lnc.
FM-4
Calcareous Sandstone
Fine grained relatively soft calcareous sandstone.<br /><br /> Thin Section Fine angular grains with fairly close packing characterize this thin section, with unusually sharp angles. Sample is still clay dominated.
Oct., 11, 2013
Western Minerals, lnc.
FM-3
Conglomerate
Conglomerate, dominated by carbonate pebbles). Only a medium grained (1-10cm) facies collection of out of what was perhaps a 50ft exposure of coarse conglomerates. Light pink quartzite pebbles are interpreted to have been deposited during the Triassic. <br /><br />Poorly sorted mix of sedimentary and igneous clasts floating in a sand sized matrix of varying composition across the sample, with an argiliaceous smell and calcareous content in the cement Thin Section Small grains (1 mm) and small pebble sized granites cemented with mud dominate this thin section, with smaller, angular fragments present as well.
Oct., 11, 2013
Western Minerals, lnc.
FM-2
Fossiliferous Biofloatstone in a mud matrix
Fresh water marl with plant remains. Specimens selected to include leaf and or stem remains. Hand sample specimen is small and crumbly. <br /><br />Fossil bearing biofloatstone composed of soft silt, mud and limestone matrix, with carbon imprint and original material remains, mainly gastropods and plant remains. Both are visible in thin section, along with mineral evidence that the sediment was not transported very far. <br /><br />Thin Section XPL and PPL images exhibit phosphatized remains, clay particles, as well as some quartz and lithics are present.
Oct., 10, 2013
Western Minerals, lnc.
FM-1
Flysh Molasse Western Minerals Supplementary Information
OCR PDF Supplementary information for the Flysh Molasse suite.
Western Minerals, INC.
Western Minerals, INC.
FM-suite