 | | Book | | zeolite mineralogy was done, at that time, in Germany, Italy, France, and Great Britain. Because of differences...Lower Miocene columnar basalt in the Narre Warren Quarry, near Melbourne, Australia. The minerals are believed...hemispherical front-lens. Type Locality: H(lwenegg, Hegau, Germany Nomenclature: From its framework structure and...combination with {110} and {OIl} is found only at Hegau, Germany (Figs. 15,18,26,27) while {WI} and {OW} in combination...15 MODIFIED HABIT MONOCLINIC ORIENTATION HEGAU,GERMANY Fig. 18 COMMON HABIT MONOCLINIC ORIENTATION ALL | | | Book | | zeolite mineralogy was done, at that time, in Germany, Italy, France, and Great Britain. Because of differences...Lower Miocene columnar basalt in the Narre Warren Quarry, near Melbourne, Australia. The minerals are believed...hemispherical front-lens. Type Locality: H(lwenegg, Hegau, Germany Nomenclature: From its framework structure and...combination with {110} and {OIl} is found only at Hegau, Germany (Figs. 15,18,26,27) while {WI} and {OW} in combination...15 MODIFIED HABIT MONOCLINIC ORIENTATION HEGAU,GERMANY Fig. 18 COMMON HABIT MONOCLINIC ORIENTATION ALL |  | | Journal (volume) | | albite diabases with so me collective name (albite diabase, metadiabase, intrusive greenstone, leucodiabase);...also been stated that the high sodium content of diabase magma results from the assimilation of geosynclinal...as field observations. The double-term »albite diabase» employed in this study is based partly on the...of intrusion and differentiation. Each albite diabase is described in that section in which belongs the...amphibole-epidote-albite diabase of Tenomuotka (p. 27). v ÄHÄ -KURKKIO The amphibole-pyroxene-albite diabase of Vähä-Kurkkio |  | | Report (issue) | | -_----_-______ Photographs of banded gneiss in quarry at Barreiro_________________________________________________...Photomicrograph of plagioclase with quartz and clinozoisite inclusions_______________________________ Photomicrograph..._____________________ Analysis of porphyritic diabase from Catas Atlas___________-___________-__-___...before 2,700 m.y. ago. Mafic instrusions include diabase dikes and gabbro plugs and are of several ages...undeformed rocks are probably correlative with diabase-gabbro to the south which has been dated around |  | | Journal (article/letter/editorial) | | 1860 CONTACT-METAMORPHIC EFFECTS OF TRIASSIC DIABASE AT SAFE HARBOR, PENNSYLVANIA BY RANDOLPH W. CHAPMAN...and apophyses 194 ic t aureole 196 -pay of the diabase dike and apophyses. 197 uiphy and contact metamorphism...Safe Harbor y. Pennsylvania 192 'P^yseal dike of diabase intruding •Rs;ft dolomite 196 . vein in altered...factor in the meta, trending dike of Triassic diabase transects morphism of the inner zone although hydrothermal...played a role. In the outer zone, • 'icep quarry in the diabase affords a splendid hydrothermal solutions |  | | Report (issue) | | out in the eastern parts of the quadrangles. Diabase dikes, which are Late Triassic or younger in age...for more than 11 miles* A sheet of West Rock Diabase at least 18 miles long and as much as 700 feet...position by more than 1,000 feet. Dikes of Buttress Diabase were emplaced along faults and fissures that cut.................................. 105 West Rock Diabase................................. 106 General....................... 107 Relationship between diabase bodies.......... 108 Origin................... |  | | Report (issue) | | Loudoun County 143 Prince William County 149 Diabase quarries of northern Virginia 155 CAPTIONS Illustrations... List of Figures Figure 1. Index map showing region covered in this report. Stfaded area is covered...Figure 2. Block diagram of the Washington, D.C. region showing physiographic provinces and major geographic...Complex at Ilchester, Maryland. Figure 6. Triassic diabase dike forming a ridge north of Route 7 near Dranesville...and locations of mines in the Soldiers Delight region, Baltimore County, Maryland. Adapted from Pearre |  | | Report (edition) | | County, the Stillwell quarry in Lancaster County, and the Medusa Cement Company quarry in York County, are...Zircon Crystal 50 Diagramatic Sketch of Brinton Quarry Pegmatite 53 Geologic Cross-Section of West ...84 of Deweylite after Dolomite, Ceclar Hill Quarry 89 _ Limonite Pseudomorphs from Chestnut Hill...permission from the owners of the land, or from the quarry and mine operators, before entering to collect...have been taken from topographic quadrangles. A quarry or mine symbol designates the exact mineral location |  | | Journal (issue) | | THL Y Contents for April, 1941 CHIPS FROM THE QUARRY .................................................OPAL MINE ........................ KIBBLEHOUSE QUARRY, PERKIOMENVILLE, PA. By William F. Haeberle .....T etrahedrite, Gottesg~be Mine, Roth, Nassau, Germany ; Celesttte, Giona Mine, Girgenti, Sicily, Italy...regarding the source of the specimens-name of mine or quarry if possible but at least the town, village, settlement...compressed air, pass under the river. vated in the diabase of the Palisades. When this tunne:l is mentioned |  | | Report (edition) | | Crystal . . . . . . .. Diagra1natic Sketch of Brinton Quarry Pegmatite Graphic Granite Geologic Cross-Section...Pseudomorphs of Deweylite after Aragonite. Cedar Hill Quarry . . . . . . . Calcite Crystal Forms "Picrolite"... Q t9 Diabase intrusions 225 er ...permission from the owners of the land, or from the quarry and mine operators, before entering to collect...have been taken from topographic quadrangles. A quarry or mine symbol designates the exact mineral location |  | | Journal (article/letter/editorial) | | Pegmatitic Type. (2) Zone of Turbid Felspar. (3) Clinozoisite Zone. (4) Prehnite Zone. (5) Garnet Zone. 4...phenomenon which may be observed in the limestone quarry on Cleared Hill, Portion 1, Parish of Ben Bullen...limestone and to the covering up of the contacts by quarry debris, the field relations are rather difficult...quartzite talus. To the east and north-east of the quarry the igneous rock consists of gabbros and hornblendites...diorite. On the vertical face of the Cleared Hill quarry (see Fig. 1) large somewhat irregular patches showing |  | | Journal (article/letter/editorial) | | Bay Glacier, though these were much curtailed by bad weather. On the return journey the party made their...augen-gneisses was observed by N. E. Odell 8 in the region of the Lomme Bay Glacier ; and it seems highly...older than Ozarkian must be borne in mind. In the region under discussion the name Hecla Hook has been applied...Garwood in 1897, forms the southern part of the region described. This tract lies under a covering of...is concealed. A few miles to the north, in the region investigated by Odell in 1923, the glacier takes |  | | Journal (article/letter/editorial) | | of the mineral pumpellyite in the Lake Wakatipu region, western Otago, New Zealand. By C. OSBORNE HUTTON...4 at Hochlantsch Mount, Styria, in an altered diabase, and from Lake Enare, Finnish Lapland, where it...39-46. [M.A. 6--429.] 530 c . o . HUTTON ON diabase-tuffs from eastern Corsica; and in diabases from...the ' green clinozoisite' described by G. Fischer (1929) from Wippra in the Harz, Germany, have on re-examination...has been engaged in a study of the Lake Wakatipu region, in western Otago, New Zealand, composed of a varied |  | | Journal (article/letter/editorial) | | Experimental results in and near the supercritical region MICHAEL E. BERNDT’, WILLIAM E. SE~FRIED, JR.’ and...with Na-C&K-Cl fluids of seawater chlorinity and diabase, basalt, and plagioclase bearing mineral mixtures...and the compositions of plagioclase reactants. Diabase alteration at low fluid/rock mass ratios (0.5 to...mid-ocean ridges is composed of only slightly altered diabase and is characterized by small amounts of epidote...circulating hydrothermal fluids encounter basalt, diabase, gabbro, or ultramafics prior to ascent to the |  | | Report (issue) | | ................................11 Keweenawan Diabase ....................................................24 SAMPLE 26-28 DIABASE (greenschist facies) ..........24 SAMPLE 26-9 DIABASE (greenschist facies)........24 SAMPLE 26-26 DIABASE (greenschist, N-S trending)24 SAMPLE 26-18 DIABASE (greenschist, N-S trending)24..................... 19 SAMPLE 36-23 UNALTERED DIABASE....................24 TABLE 28...................existence of precious metal anomalies within the region. This project extends northward the previous mapping |  | | Journal (article/letter/editorial) | | and Brunswick formations of the Newark Group by diabase sills produced unusually varied and unique mineral...5 m below the Palisade Sill and in the Granton Quarry (Van Houten, 1969, Figs. 9, 30, 31) commonly are...tourmaline also occurs on joints in and very near the diabase intrusions. An estimated 0.01 percent maximum of...percent boron) points to volatile additions from the diabase. I t should be noted, however, that an average...the following: andalusite with clinozoisite rims; feldspar and clinozoisite presumably replacing andalusite; |  | | Journal (article/letter/editorial) | | ~~~pt~~~er 10, 1985) Abstract-Crystalline basalt, diabase and basalt glass have been reacted with a Na-Ca-K-Cl...ofOS-1.0, to assess the role of temperature, basalt/diabase chemistry and texture on heavy metal and sulfur...hydrothermal alteration. Alteration of basalt/diabase is characterized by cation fixation and hydrolysis...chlo~te/sm~tite, Ca-rich amphibole and clinozoisite. Clinozoisite was identified as a replacement product...experimentally derived fluid chemistry the axial region of the East Pacific Rise (EPR) (BALand natural |  | | Report (issue) | | soapstone quarry. Giles (1961) observed similar material in the Alberene soapstone quarry. Rare earth-bearing...Augite, is an important constituent of several diabase dike rocks which occur in the county (Rowan, 1955;...noted in the Catoctin Formation at the Shadwell quarry in ttre 1970s. The platy crystals are to 0.25 inch...Dominion soapstone quarry. Giles (1961) observed similar materid in the Alberene soapstone quarry. Rare earth-bearing...Augite, is an important constituent of several diabase dike rocks which occur in the county (Rowan, 1955; |  | CALDER^|^Oacute;N, M., PRADES, C. F., HERV^|^Eacute;, F., AVENDA^|^Ntilde;O, V., FANNING, C. M., MASSONNE, H.-J., THEYE, T., SIMONETTI, A. (2013) Petrological vestiges of the Late Jurassic-Early Cretaceous transition from rift to back-arc basin in southernmost Chile: New age and geochemical data from the Capit^|^aacute;n Aracena, Carlos III, and Tortuga ophiolitic complexes. GEOCHEMICAL JOURNAL, 47 (2) 201-217 doi:10.2343/geochemj.2.0235 | Journal (article/letter/editorial) | | Stuttgart, Azenbergstrasse 18, D-70174, Stuttgart, Germany 5 Department of Earth and Atmospheric Sciences...to the level of sheeted dike complexes, massive diabase and gabbroic units, and ultimately ultramafic rocks...wavelength-dispersive spectrometers at Universität Stuttgart, Germany. Operating conditions were an acceleration voltage... biotite, traces of chlorite, titanite, and clinozoisite in Seno Mónica (Fig. 2). Stilpnomelane is restricted...ine Tortuga Complex SEDIMENTS BASALTS DIKES DIABASE 1 km GABBRO Fig. 2. Distribution of metamorphic |  | | Report (issue) | | Geology-Virginia-Roseland Region. 2. Mines and mineral resourcesVirginia-Roseland Region. I. Force, Eric R....____________________ Previous determinations in the region ______________ New age data __________________...___________________ Map and cross sections of the Roseland rutile quarry _____________________________________ 13 14 14...(1958) is considered to be the basement in the region. It includes igneous rocks such as anorthosites...pegmatite, (3) gabbro, (4) nelsonite, and (5) diabase. The syenite, gabbro, and nelsonite were believed |  | | Report (issue) | | quartz___________________ Clinohypersthene_. ________________ Clinozoisite _______________________ Amphiboles _______________________...---_ 2 FIGURE 1 . Map of the Virginia titanium region._______________________________-___---__---_--...segregation and the dominant country rock of the region. The anorthosite shows sequence of Ti02 and FeO...associated par agenesis. with amphiboles, micas, clinozoisite, and quartz, which have Statistics are not available...district have been systematically developed, clinozoisite and muscovite, but this has taken place without |  | | Journal (article/letter/editorial) | | and natural ridge crest hydroFurthermore, basalt/diabase composition, mineralogy thermal fluid (Morn, 1983...hydrothermal alteration of baand BISCHOFF,1983). salt/diabase at conditions consistent with existing geoExperiments...National L~boratoks, L.os action in the supercritical region. SEYFRIEDand JAAlamos, NM 87545. NECKY( 1985) should...of quenching on solution chemistry. Unaltered diabase dredged from 23’N latitude on the MidAtlantic Ridge...of Cl. Na, Ca, K, Fe, H2S, Si02 and pH during diabase-fluid interaction at a fluid/rock mass ratio of |  | Duan, Wen-Yong, Li, Xu-Ping, Wang, Ze-Li, Chen, Shuang, Sun, Guang-Ming, Zhao, Ling-Quan (2021) Thermodynamic modeling and elemental migration for the early stage of rodingitization: An example from the Xialu massif of the Xigaze ophiolite, southern Tibet. Geoscience Frontiers, 12 (3) 101125pp. doi:10.1016/j.gsf.2020.12.006 | Journal (article/letter/editorial) | | Geosciences, Ruhr-University Bochum, 44780 Bochum, Germany a r t i c l e i n f o Article history: Received...amphibole (Act) + primary plagioclase (Plr) + clinozoisite + prehnite + albite + chlorite + titanite +...+ primary and late amphiboles (Ampr + Act) + clinozoisite + prehnite + albite + chlorite + titanite (R2...late clinopyroxene (Cpxn) and amphibole (Act) + clinozoisite + prehnite + albite + chlorite + titanite (R3...address: lixuping@sdust.edu.cn (X.-P. Li). gabbro, diabase, diorite, granite, and graywacke are potential |  | | Journal (article/letter/editorial) | | XVII. FIG. I.—External view of the peristomial region of Pygastrides relictus, much magnified (after...(after Loven). 2.—Internal view of the same region. The perignathio processes are broken away in areas 16,...sphteridial pit (after Loven). 4.—Plan of the peristomial region of the corona of Echinocyamus, internal surface...character. 6.—Internal view of the peristomial region of young Echinone'us, 4-19 mm. long (after Westergren)...ridge east of Tyn-y-coed, and best exposed in a quarry at its southern end, is a dark-coloured, almost |  | Gil, Grzegorz, Gunia, Piotr, Barnes, Jaime D., Szymański, Michał, Jokubauskas, Petras, Kalbarczyk-Gil, Anna, Bagiński, Bogusław (2019) Origin of Talc and Fe-Ti-V Mineralization in the Kletno Deposit (the Śnieżnik Massif, SW Poland) Minerals, 10 (1) 13 doi:10.3390/min10010013 | Journal (article/letter/editorial) | | example of carbonate wall-rock, is from the abandoned quarry in this area. In addition, subordinate quartzite...hundred meters away, and marble from an abandoned quarry in the Kleśnica valley. Both newly collected samples...magnesio-hastingsite or pargasite rim; some epidote-clinozoisite crystals show zoning or contain allanite inclusions;...as the fine, relic inclusions within epidote-clinozoisite crystals; some magnetite crystals contain ilmenite...and tremolite–resembling actinolite), epidote-clinozoisite solid-solution, chlorite (ripidolite and brunsvigite) |
|
