 | | Journal (issue) | | on Mt. Verdigris. At this site, near the Yangtze River about 20 km southwest of Huangshi, more than 400...by Chinese miners in remote times. Commonly the rock was attacked, not only with mining tools, but also...regions (including the Himalayas) to the basin and range systems in the southern and northeastern regions...northern China fluvial plain and the eastern China coastal plains. Within these different units, a vast number...depositional sequence consisting of alluvial, fluvial, coastal and shallow marine clastic and coal deposits in |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...(See the article in this issue on this famous occurrence.) Formerly in the F. John Barlow collection,...he settled in California where he joined the Mineralogical Society of Southern California and eventually...Bulletin of the Mineralogical Society of Southern California, 75, no. 7, p. 12.] WEW Died, Abraham Rosenzweig...assistant. The visit was part of a reconnaissance of rock and mineral occurrences of potential interest to |  | | Book | | synthetically are not minerals. A diamond found in a rock is thus a mineral, whereas a dia- it is made...of the environment in which it is formed. Quartz is quartz, regard- less of its place of formation....ore minerals, Figure 2. Quartz from Schmirnerthal, Tirol, Austria. Quartz is often found as crystals...because they have the same type of crystal structure. Quartz and cristobalite, for example, are two minerals...Zackenberg, Greenland. Gneiss is a rock consisting of feldspars, quartz, and dark minerals such as biotite; |  | | Book | | structure). Many minerals belong to groups with a range in both chemical composition and internal structural...mixtures. Some minerals, such as quartz and feldspar, are widespread in occurrence. Others, such as platinum...grouped like the petals of a flower. Cleveland County, Oklahoma. Minerals Past and Present (75 percent)...is an important aid to understanding mineral occurrence. Examples of such groupings are copper, lead...platinum metals, tantalum, industrial diamonds, quartz crystals, and strategic mica. With the possible |  | | Report (volume) | | geology and mining industry of Leadville, Lake County, Colorado, by S. F. Emmons, pp. 201-290, pis. xliv-xlv...chiefs of divisions, pp. 43-143, pis. i-vii. The rock scorings of the great ice invasions, by T. C. Chamberlin...pis. ii-xv. Quaternary history of Mono Valley, California, by Israel C. Russell, pp. 261-394, pis. xvi-xliv...sites in the hydrographic basin of the Arkansas River, Colorado, by A. H. Thompson, pp. 429-444. Report...pis. vii-xvi. The gold-silver veins of Qphir, California, by Waldemar Lindgren, pp. 243-284, pis. xvii |  | | Report (volume) | | sulphide zones._ _ ______________________ 172 Occurrence of the copper minerals_________________ 176 Copper-bearing...Copperopolis, California____________________ 233 Shasta County, California______ _ __ 234 Snowstorm lode, Coeur...Chitina copper belt, Alaska 246 Boleo, Lower California __ Braden copper mines, Clule__ - " 247 247...Silver-lead deposits 268 Silver-copper deposits 269 Occurrence of silver minerals_________;__________ 270 Silver-bearing...Breckenridge, Colorado^. __________________ 295 Gilpin County, Colorado.-____________________ 297 Rico, Colo |  | | Report (volume) | | Mountains constitute the eastern end of the Alaska Range, which extends in a great arc across southern Alaska...either merges with the Coast Range or dies out as an independent range in the vicinity of the international...and extends from the Nabesna River southeastward across the Chisana River to Beaver 'Creek. It is an area...finally uniting to form the Tanana River. Two smaller streams, the Snag River and Beaver Creek, rise within...within the area, but they are tributary to the White River, which flows into the Yukon. At present the usual |  | | Book (edition) | | uk 40 West 20th Street, New York, NY 10011-4211, USA http://www.cup.org 10 Stamford Road, Oakleigh, Melbourne...hammering be very careful indeed of flying splinters of rock. Protective goggles can be obtained and should always...but any outcrop of rock may prove fruitful. It should be borne in mind that rock outcrops are potentially...mandatory in some places. Injuries can also result from rock falling on the feet. Boots, rather than trainers...distribution and geological ages of the different rock types. This information should indicate where fossils |  | | Journal (article/letter/editorial) | | Tremadoc district included a description of a brookite occurrence near Pren-teg (Fearnsides 1912). Since then...about 1,000 seen There are intrusions of rhyolite, quartz porphyry, microgranophyrc and dolerite. 219 ...siltstone bands is now largely chlorite, with sericite, quartz, rude, and sometimes calcite. About 600 feet of...contact appears to be slipped or faulted, but the rock distribution is consistent with a regular overstep... containing well-rounded small pebbles of vein-quartz and a few of acid volcanic rocks. In several places | | | Book (edition) | | hammering be very careful indeed of flying splinters of rock. Protective goggles can be obtained and should...road cuttings and mine dumps, but any outcrop of rock may prove fruitful. It should be How to collect...wrapping materials and a 4 borne in mind that rock outcrops are potentially hazardous and appropriate...helmet in quarries. Injuries can also result from rock falling on the feet. Boots, rather than runners...distribution and geological ages of the different rock types. This information should indicate where fossils |  | | Report (issue) | | dikes ....................................... Occurrence .................................. Batamote plug...history ......................................... Rock alteration ............................................ Metamorphism older than the Chico Shunie quartz monzonite .......................................and ore deposition associated with the Cornelia quartz monzonite. ............................. Normal..... Late magmatic modifications of the Cornelia quartz monzonite ........................... Postmagmatic |  | | Report (issue) | | ............................... ...... ' Three River Peak .........._............... ·'··..............Mountain, Bannock Peak, and the valley of the Gallatin River.................. Bannock Peak.................... .. . . .. . . \Vestern flanks of the Gallatin Range.......................... .............................. Eastern flank of the Ma.dison Range.......................... ............................. CHAPTI<:R...mineral and chemical composition of the ern11tive rock,; 13·1 of Sepulchre Mo1.mtain. ...... ...... .. |  | | Book (edition) | | regular atomic arrangement which sets limits to its range of chemical composition and gives tt a characteristic...suitable atoms rigorously selected from a whole range of ions or molecules in solution. These are meticulously...electric charges by stressing a crystal, which makes quartz useful in pressure gauges and electric oscillators...other directly. Each new determination extends the range of possible inferences. In certain cases other arguments...The existence of this possibility explains the range of variation in composition of isomorphous mineral |  | | Book | | Butler and H. M. Churchward 91 Soil formation on coastal lands and the effects of sea level changes and... Plate 3.12. An alpine humus soil formed granitic rock in the Mt Kosciusko area of south-eastern Australia...truncated laterite profile exposed in the Sutton River, central Queensland. XVII Plate 3.15. (a) Laterite...into a number of sections that deal with the occurrence and genesis of Australian soils, their chemistry...in some areas. Average annual air temperatures range from 29°C along the north-west coast area, to 5°C |
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