 | | Report (issue) | | from the roadlog of Thompson (1972). In the Orange County copper district, the stops and descriptions in...sedimenthosted massive sulfide deposits within the Orange County copper district (the Vermont copper belt) of probable...amounts of mica, tourmaline, carbonate, sodic plagioclase, amphibole, and spessartine (Mn-rich) garnet...schist (very thin here), 4) laminated hornblende-plagioclase rock, and 5) coarse garnet-mica schist (with...of albitic plagioclase. Also note here another exposure of laminated hornblende-plagioclase rock, STOP |  | | Report (issue) | | ..............1 Reesers Summit 1-83 northeast roadcut exposure .......2 Location and description of core...location of the USGS 1984 samples from the 1-83 roadcut and USGS core holes 1 and 2 within the Mesozoic...1. Magnetic susceptibility of samples from the roadcut along 1-83 at Reesers Simmit, Pa. (in cgs units...Figure B4. Geometric relationship between the roadcut exposure at Reesers Summit, the USGS coreholes... Magnetic susceptibility profiles of the 1-83 roadcut and coreholes 1 & 2, projected onto a line normal |  | | Report (volume) | | Western Part of the Morrison Quadrangle Jefferson County, Colorado GEOLOGICAL SURVEY BULLETIN 1251-E...Western Part of the Morrison Quadrangle Jefferson County, Colorado By D. J. GABLE CONTRIBUTIONS TO GENERAL... Quartz-plagioclase gneiss___________-______-________________ Microcline-quartz-plagioclase-biotite gneiss...TABLES TABLE 1-4. Modes: 1. Biotite-quartz-plagioclase gneiss._______________ 2. Garnetiferous and sillimanitic...sillimanitic biotite-quartz-plagioclase gneiss______--_--_----_--..--------~---_3. Amphibolite in hornblende |  | | Report (issue) | | Triangular diagrams showing proportions of quartz, plagioclase, muscovite, and biotite in biotite-muscovite...-------Photomicrograph of biotite-muscovite-plagioclase porphyroclast quartz schist ----------------...lar diagrams showing proportions of quartz, plagioclase, muscovite, and biotite in gneiss in the Blue...ular diagram showing proportions of quartz, plagioclase, and potassic feldspar in Beech Granite ___ Photomicrograph...ular diagram showing proportions of quartz, plagioclase, and potassic feldspar in aegirine-augite granite |  | | Journal (article/letter/editorial) | | epidote from selected Proterozoic dolerites in Sweden have higher initital 87Sr/86Sr ratios, (e.g., 0...the samples, all dolerites, consist of calcic plagioclase, clinopyroxene, Fe - Ti oxides and apatite. Olivine...U p p e r Proterozoic dolerite intrusions from Sweden; these occur in a region of crust thermally unaffected...in having Sr contents 200 ppm higher than the plagioclase F1 in S0-4 (Table 1), a relationship in opposition...sericite and hydrous mafic minerals penetrate plagioclase and olivine, respectively; serpentine was not |  | | Report (issue) | | Snake River above the north end of Dug Bar, Wallowa County, Oreg. (Cactus Mountain quadrangle, Idaho-Oregon:...flows of Imnaha Basalt are coarse grained and plagioclase phyric, some, such as the informally named Rock...12 S., R. 26 W., in Picture Gorge, western Grant County, north-central Oregon (Waters, 1961). Here the...sequence of aphyric flows underlain and overlain by plagioclase-phyric flows. The lower unit is here informally...basalt of Twickenham consists of two to six plagioclase-phyric flows varying in thickness from about |  | Zhang, Zeming, Xiao, Yilin, Liu, Fulai, Liou, J.G., Hoefs, Jochen (2005) Petrogenesis of UHP metamorphic rocks from Qinglongshan, southern Sulu, east-central China. Lithos, 81 (1) 189-207 doi:10.1016/j.lithos.2004.10.002 | Journal (article/letter/editorial) | | and quartzite are exposed in the Qinglongshan roadcut, southern Sulu orogenic belt of eastern central...belt, showing the location of the Qinglongshan roadcut (Fig. 2). chemistry, several important conclusions...investigate the petrogenesis of UHP rocks. The roadcut lies about 22 km NE from the Chinese Continental...lithological profile of the Qinglongshan highway roadcut, showing location and numbers of the main samples...character of the representative rocks from the roadcut 3. Analytical methods Sample Major element contents |  | | Journal (article/letter/editorial) | | LACUSTRINE DEPOSIT NEAR KIRKLAND JUNCTION, YAVAPAI COUNTY, ARIZONA Key Words--Barium, Harmotome , Lacustrine...basalt and minor epiclastic grains of quartz, plagioclase, epidote, and biotite . Thin lenses of granule-size...texture . Phenocrysts of zoned plagioclase (Ano....s:J and laths of plagioclase (Anss) are set in a groundmass...southwestern Yavapai County, Arizona. The harmotome-bearing sandstone is exposed in a small roadcut on the west...(Wilson et al. , 1969). The rocks exposed in the roadcut are chiefly brown mudstone,. and the harmotome-bearing |  | | Report (volume) | | the Claiborne Formation (middle Eocene) of Graves County in Kentucky; and Benton and Panola Counties in...Come, Henry County, Tenn. United Sierra clay pit, 2.5 km west of Gleason, Weakley County, Tenn. Do.....Liberty, Weakley County, Tenn. United Sierra clay pit, 7 km west of Huntingdon, Carroll County, Tenn. 2.0 ...Clay Products pit, 4.5 km north of Henderson, Rusk County, Tex. 15 5 tr 20 10 5 70 85 70 70 70...is the major nonclay mineral in most samples; plagioclase and heulandite are found in minor to trace amounts |  | | Book | | WARWICKITE OCCURRENCE 3 7 DIAMOND LAKE ROADCUT 3 8 GRACE LAKE ROADCUT 3 8 DESMONT MINE 3 9 ESSONVILLE... epidote, garnet, pyroxene 26 BOWER'S POINT ROADCUT Herschel augite, calcite, scapolite, titanite...titanite, tourmaline, uranothorite 39 DIAMOND LAKE ROADCUT Herschel feldspar, hornblende, mica, pyroxene... ESSONVILLE ROADCUT Monmouth fluororichterite, phiogopite, diopside, calcite FARADAY HILL ROADCUT Faraday...pyrite, scapolite, sodalite, zircon GRACE LAKE ROADCUT Dudley tremolite/actinolite, diopside, phiogopite |  | | Report (issue) | | to dacite fields in normative Qtz-K-feldspar-plagioclase classification of Streckeisen (1980). Geochemical...additive to cattle feed, and for road metal. 8.9 Roadcut in Proterozoic granite mapped as Pikes Peak by...Middle Proterozoic. 10.7 Monarch Ski area 11.8 Roadcut in Proterozoic granite, much shattered and discolored...west are amphibolite and felsic gneiss. 24.6 Roadcut in layered mafic-ultramafic rocks of Proterozoic...50 and Colo. 149. STOP 1. BLACK CANYON SCHIST Roadcut on north side of U.S. 50 (figure 2) exposes fine-grained |  | | Book (edition) | | backroads and often come across a quarry or a roadcut, stop and investigate it, and bring back some colourful...present additional problems. The famous Hi ghway 62 roadcut north of Bancroft is now closed to collectors because...to get at mineral samples, they undermined the roadcut and it became a safety hazard. If you choose to...Road, tum right and drive 22.2 km to the roadcut. The roadcut is located on top of a small hill, just...actinolite crystals; albite, biotite, white calcite The roadcut contains a small lens of calcium-silicate meta-sediments |  | | Journal (issue) | | gneiss with subordinate layers of light-gray plagioclase (01igoclase)-quartz gneiss mantled by a deep...developed on the unit. The alternating mica-rich and plagioclase-quartz-rich bands can be distinguished in the...saprolite; exposure in roadcut on west side of road. Shows amphibolite layers in plagioclase-quartz-mica gneiss...tracks. Cross Franklin-Henry county boundary. Cross Henry-Franklin county boundary. Cross Mill Creek....allochthon. Cross Patrick-Henry county boundary and into Henry County. Turn left (northwestward) on State |  | | Book (edition) | | the Rio Hondo), the historic sites of the Lincoln County cattle wars, and the awesome black wasteland of...22 Intrusive igneous structures, western Lincoln County 28 vi FIGURES Index map viii Map, mines, prospects...Intrusive igneous rock structures, western Lincoln County Road map and index to topographic maps 20 New Mexico...45 Church near San Patricio 45 Roadcut in San Andres Limestone 46 Roadcut in alluvial fan gravels 49 Fox...Wortley Hotel, Lincoln 55 Lincoln tower 56 Lincoln County Courthouse 56 View of Capitan Mountains 58 Dikes |  | | Report (issue) | | COUNTRY.......... STATE CODE....... STATE............ COUNTY........... UNITED STATES 25 MASSACHUSETTS BERKSHIRE...COUNTRY.......... STATE CODE....... STATE............ COUNTY........... UNITED STATES 25 MASSACHUSETTS BERKSHIRE...COUNTRY.......... STATE CODE....... STATE............ COUNTY........... SAMPLE IDENTIFICATION RECORD NUMBER...COUNTRY.......... STATE CODE....... STATE............ COUNTY........... SAMPLE IDENTIFICATION RECORD NUMBER...CODE....... UNITED STATES 25 STATE............ COUNTY........... MASSACHUSETTS HANPOEN QUAD SCALE 1: |  | | Journal (article/letter/editorial) | | PETERMAN even lower strontium contents because plagioclase would be a solid phase in equilibrium with the...partial melting of the slab under conditions where plagioclase was not a stable phase. However, it would be...expected because near the trench at shallow levels, plagioclase would be a stable residual phase, and the first...calc-alkaline series. This is not to imply tation of plagioclase during this process. In that all of the samples...possibly by an early stage of partial melting and plagioclase accumulation. Leeman's source could be interpreted |  | | Report (issue) | | 1964 ROAD LOG OF THE CHATHAM, RANDOLPH AND ORANGE COUNTY AREAS, NORTH CAROLINA FIELD TRIP GUIDEBOOK RALEIGH...Counties and the Virgilinia synclinorium in Person County. The intensity of folding increases eastward fro...anticlinorium. In eastern Randolph County and in most of Chatham County the rocks are tightly compressed...of the Slate Belt in Union County, in central Orange County, in Durham County northwest of the Triassic...Triassic basin and in southeastern Person County. The lower contact of the Uwharrie Formation has not been recognized |  | | Journal (issue) | | Large, well-formed crystals of microcline, plagioclase, clinopyroxenes, amphiboles, micas, apa tite...crystals abound at the locally famous High way 62 roadcut just north of Bancroft, and in numerous other col...vein-dike near Long Lake in Olden Township, Frontenac County. Tabular pseudo-orthorhombic euhedra up to 10 cm...crystal (1.6 x 2 cm) from Olden Township, Frontenac County, Ontario. George and Susan Robinson specimen. menite...itself is for the type locality near Perth, Lanark County, Ontario.) Huge crystals of microcline up to half |  | | Report (issue) | | quarry Renfrew–Madawaska area Renfrew County Road 4 (Bruce Avenue) roadcut Highway 60 quarry Jamieson marble...Carswell quarry Bryson marble blocks Bryson roadcut 1 Bryson roadcut 2 New Calumet mine Calumet uranium occurrence...Most of the collecting localities are in Renfrew County, Ontario. A wide variety of minerals are found...quartz, graphic granite, and corundum from Renfrew County; feldspar (peristerite, amazonite), jaspilite,...Westmeath bogs. km 8.5 Junction, Highway 44/County Road 49 (March Road) to Humphreys feldspar mine |  | | Journal (issue) | | mines were being worked on three creeks in l inn County. Sma ll go l d miners in Oregon in 1935 so ld bu...[Production and income of all placer miners, by counties] County No. mi ners No. creeks working worked Baker ...side is the Foster Reservoir vi ewpoi nt. In the roadcut on the right-hand side of the road at the traffic...Reservoir, note the paleoriver terraces in the roadcut to the left, indicating that theSantiam River was...contain gold and have been mined in the past. In the roadcut on your left, below the schoolhouse, you can see |  | | Report (issue) | | MAP OF CUYAMACA PEAK 7% f QUADRANGLE, SAN DIEGO COUNTY, CALIFORNIA By Victoria R. Todd Open-file report...map of Cuyamaca Peak 7%' quadrangle, San Diego County, California Purpose of project: Published maps...Peninsular Ranges batholith in southern San Diego County comprise a relatively unfaulted block but topographic...feature of the plutonic rocks in southern San Diego County is the prevalence of synplutonic contacts between...calc-silicate rock variably composed of epidote, garnet, plagioclase, pyroxene, quartz and hornblende is common in |  | | Report (issue) | | l/4 sec. 3, T. 3 N., R. 13 E., Road cut N. side county road. 8-86-P Atoka , Atokan SE 1/4 sec. 8, T...Desmoinesian SE 1/4 sec. 9, T. 1 N., R. 10 E., Roadcut N. side highway 77. 1 4-86-P Deese, Desmoinesian...Desmoinesian SE 1/4 sec. 12 , t. 5 S., R. 1 E., Roadcut W. side highway 77. 15-86-P Atoka, Atokan SWl/4 sec...sec. 9, T. 3 o . , R . 2 E., Roadcut S. side highway 53. 16-86-P Vanoss, Virgilian NE 1/4 sec. 27...27 , T. 1 N., R. 3 E., Roadcut E. side highway 170. 17-86-P Ada, Virgilian NE 1/4 sec. 21 , T. 9 N. |  | | Report (issue) | | Bed in the Eggleston Formation near Hagan, Lee County, Virginia. Photograph taken by Stig M. Bergstrém...1991). In their study of Ordovician K-bentonites of Sweden, Velde and Brusewitz (1982) reported that, in general...to 350 °C for phengitic mica (Hunziker, 1979). Sweden, of vide further (Brusewitz, K-bentonite The significance... euhedral phenocrysts, are quartz, biotite, plagioclase and potassium feldspar, ilmenite, apatite, zircon...in the southern Appalachians. Where primary plagioclase has been preserved, the two K-bentonites can |  | | Report (volume) | | Predom1nontly biotite-quartz-plagioclase gneiss Sillimonitic biotite-quartz-plagioclase gne~s- Both biot1te and...and S1llimon1tic biotite -quartz-plagioclase gneiss may contain layers that ore garnet, cordierite, gednte...gneiss consists predominantly of hornblende and plagioclase and widely varying amounts of quartz, biotite...biotite, and pyroxene. Hornblende-plagioclase biotite and hornblende-plagioclase-pyroxene gneiss (samples 1...hornblende gneiss. Interlayered within the hornblende-plagioclase gneiss are lenses of amphibolite, biotite gneiss |  | | Report (issue) | | 12 Photomicrograph showing typical clot of plagioclase phenocrysts in volcanic flows of the Cowlitz......... 22 Photomicrograph showing aligned plagioclase crystals in a volcanic flow of the Cowlitz Formation...ferruginous bauxite from Cowlitz County, Washington and Columbia County, Oregon ....... 88 14. Average...Average of analyses of laterite from Cowlitz County based omseverditthousondssamplesiy.. sie ihadisl erate...following along the north bank of the Columbia River. County, city, and private roads are numerous and so |
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