 | | Report (issue) | | the first comprehensive re-examination of the district since the 1899 revision by B. N. Peach and J....5 Northern serpentinite 6 The metamorphic at1reole adjacent to the northern serpentinite 13 Central zone...zone 15 Southern serpentinite 17 Basic igneous xenoliths in the southern serpentinite 23 Stinchar Valley...Balcreuchan Group: northern outcrop, Pinbain 36 The Balcreuchan Group: central outcrop 43 The Balcreuchan Group:...Group: southern outcrop 58 4 Late Arenig to early Llanvirn intrusive igneous components of the Ballantrae |  | Boschi, C., Dini, A., Dallai, L., Ruggieri, G., Gianelli, G. (2009) Enhanced CO2-mineral sequestration by cyclic hydraulic fracturing and Si-rich fluid infiltration into serpentinites at Malentrata (Tuscany, Italy) Chemical Geology, 265 (1) 209-226 doi:10.1016/j.chemgeo.2009.03.016 | Journal (article/letter/editorial) | | Malentrata (Tuscany, Italy) were derived from serpentinite silicification– carbonation of the Ligurian ophiolite...of the protolith. The pervasive alteration of serpentinite was accompanied by the formation of a network...discontinuities. This two-steps reaction (dissolution of serpentinite followed by carbonate precipitation outside...widespread silicate rocks (i.e., peridotite, serpentinite, basalt) that trap safely CO2 over geological...analogue of CO2 mineralogical sequestration, a serpentinite- Fig. 1. Geological map of southern Tuscany |  | | Journal (article/letter/editorial) | | Travertine-cemented screes on the serpentinite seacliffs of Unst and Fetlar, Shetland :DEREK ~ I N N... London W8 7AH, UK Abstract Screes on high serpentinite sea cliffs in Shetland have been ~nternally...crystallization of plush-type layers of aragonite on the serpentinite fragments. I~YWOROS: brucite, hydromagnesite...post-glacial origin occur within the outcrop of the ophiolitic serpentinite of Unst and Fetlar, but not elsewhere...are travertine-cemented and occur only on high serpentinite sea cliffs. Type A are scree breccias cemented |  | Barra, Fernando, Gervilla, Fernando, Hernández, Elkin, Reich, Martin, Padrón-Navarta, José Alberto, González-Jiménez, José Maria (2014) Alteration patterns of chromian spinels from La Cabaña peridotite, south-central Chile. Mineralogy and Petrology, 108 (6) 819-836 doi:10.1007/s00710-014-0335-5 | Journal (article/letter/editorial) | | d grains with a porous or spongy texture in serpentinite, whereas in Centinela Bajo Cr-spinel is present...Centinela Bajo (Fig. 2). Lavanderos is the only serpentinite body in Centinela Alto where Cr-spinel is significant...significant. Here, the serpentinite outcrop is only a few meters wide but extends for more than 200 m...fault-controlled emplacement for the smaller Lavanderos serpentinite and diapiric emplacement for the large (6×3...anhedral Cr-spinel grains from Lavanderos in serpentinite outcrop. Coin diameter is 2 cm. b Accessory Cr-spinel |  | Oliver, G. J. H., Smellie, J. L., Thomas, L. J., Casey, D. M., Kemp, A. E. S., Evans, L. J., Baldwin, J. R., Hepworth, B.C. (1984) Early Palaeozoic metamorphic history of the Midland Valley, Southern Uplands–Longford-Down massif and the Lake District, British Isles. Transactions of the Royal Society of Edinburgh: Earth Sciences, 75 (2) 245-258 doi:10.1017/s0263593300013882 | Journal (article/letter/editorial) | | Southern Uplands-Longford-Down massif and the Lake District, British Isles G. J. H. Oliver, J. L. Smellie...prism probably lie close to the surface. The Lake District island-arc terrane of Northern England has an...Palaeozoic rocks in the Midland Valley or the Lake District. In this paper, new data are presented and old...terranes and is probably an ultramafic lens within serpentinite (Smellie & Stone 1984). Hamilton et al. (1984)...tectonic inclusions within the southern serpentinite outcrop have been metamorphosed under hornblende- |  | Laurora, A., Brigatti, M. F., Malferrari, D., Galli, E., Rossi, A., Ferrari, M. (2011) The crystal chemistry of lizardite-1T from Northern Appennines ophioltes near Modena, Italy. The Canadian Mineralogist, 49 (4) 1045-1054 doi:10.3749/canmin.49.4.1045 | Journal (article/letter/editorial) | | m.a.s.l.; 44°23'54.46"N, 10°45'25.54"E) is a serpentinite located in the middle of the Rossenna River...compositions with the Pompeano serpentinite. The Sassomorello outcrop (650 m of maximum extent; 44°25'27...Sassomorello along the Rossenna River, in the district of Serramazzoni. It is delimited by straight escarpments...Palombini Clays (Fig. 1a). The outcrop consists of breccias with serpentinite clasts of variable dimensions... gabbroic clasts also are present. The Varana outcrop (650 m of maximum extent; 44°27'20.66"N, 10°46'28 |  | | Journal (article/letter/editorial) | | complex of Puerto Rico consists principally of serpentinite, minor amounts of chert and spilite, and locally...metamorphism prior to contact metamorphism by intrusive serpentinite. The first event recorded by the amphibolite...folding. Later, the amphibolite was intruded by serpentinite, causing incipient low-grade contact metamorphism...directly on oceanic crust, and that the intrusive serpentinite is derived from the bottom layer of the crust...the amphibolite formed prior to intrusion of serpentinite, indicating a complex preserpentinite history |  | Michard, André, Feinberg, Hugues, El-Azzab, Driss, Bouybaouene, Mohamed, Saddiqi, Omar (1992) A serpentinite ridge in a collisional paleomargin setting: the Beni Malek massif, External Rif, Morocco. Earth and Planetary Science Letters, 113 (3) 435-442 doi:10.1016/0012-821x(92)90144-k | Journal (article/letter/editorial) | | Science Publishers B.V., Amsterdam 435 [DT] A serpentinite ridge in a collisional paleomargin setting:...external zones of the Maghrebides belt. We describe serpentinite clasts within calcareous deposits that are transgressive...detrital serpentinite layers that occur within greenschist formations. Reworking of the serpentinite clasts...marginal sedimentary prism. We connect the ultramafic outcrop with a regional, N E - S W trending magnetic anomaly...anomaly), and conclude that the source of the serpentinite clasts extended roughly parallel to the local |  | 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) | | along with talc, envelopes a tectonic slice of serpentinite. Hornblendites are interpreted as metamorphosed...intrusion, interaction with serpentinite, or due to the metasomatism of the serpentinite–gabbro assemblage. Moreover...mineralization; talc; carbonate veins; stable isotopes; serpentinite-gabbro-sediment assemblage 1. Introduction...the culmination of the Żmijowiec Rib, where serpentinite and metabasite bodies are enclosed within the...metasediments. The best described unit is the serpentinite body, which has been the subject of several |  | | Report (issue) | | “Franciscan assemblage” including outcrops of serpentinite, basalt, limestone, ribbon chert, graywacke...reservoir dams of the Santa Clara Valley Water District. In addition, stops include examination of an...this report. Both the Santa Clara Valley Water District and the Santa Clara County Parks and Recreation...of this exit. Easily-accessible exposures of serpentinite, layered-chert beds in chevron folds, and Silver...several miles on US Highway 101, blue-green serpentinite exposures can be seen in the hills to the left |  | | Journal (article/letter/editorial) | | tandfonline.com/loi/tigr20 Contrasting Settings of Serpentinite Bodies, San Francisco Bay Area, California:...John Wakabayashi (2004) Contrasting Settings of Serpentinite Bodies, San Francisco Bay Area, California:...All rights reserved. Contrasting Settings of Serpentinite Bodies, San Francisco Bay Area, California:...December 2014 Although the best-known outcrops of serpentinite in the California Coast Ranges are part of the...the Coast Range ophiolite (CRO), significant serpentinite bodies crop out within the Franciscan subduction |  | | Journal (article/letter/editorial) | | chrysotile content is strongly complicated by typical serpentinite textures, consisting of fineto-ultrafine intergrowths...requirements. Keywords: Chrysotile, asbestos, massive serpentinite, thermal analysis, quantitative determination...vitic@unisi.it 0003-004X/11/0007–1003$05.00/DOI: 10.2138/am.2011.3734 similar chemical compositions, usually...: DTA QUANTITATIVE ANALYSIS OF CHRYSOTILE IN SERPENTINITE in cross or slip monomineralic veins, fractures...as pervasively dispersed within the massive serpentinite. The correct evaluation of the potential health |  | | Journal (article/letter/editorial) | | geological interest, for it is part of a major serpentinite outcrop. Despite the long descent from the cliff...anybody would agree that it is well worth it. The Serpentinite occurs in various hues, giving a most attractive...at low water. An interesting feature of the serpentinite is that it weathers to give that curious "ribbed"...a teachers' guide to go along with the slides. I am sending you a copy of the script on "Rocks and Minerals...PROSPECT FROM AUSTRALIA Editor R&M: I am a collector of mineral specimens, am 15 years of age, and a student |  | | Journal (article/letter/editorial) | | The geology of the Bou Azzer-El Graara cobalt district has been examined thoroughly by Choubert [17]...cutting its structure into a number of blocks. The district lies on the northern edge of the African platform...granitoid intrusions; 7) flysch and molasse; 8) serpentinite and as sociated greenstones: 9) gneisses and...clearly mani fested in the Bou Azzer-El Graara district. Here, over a substantial area around the whole...brecciated, almost vertical contact between the serpentinite massif and quartz diorite. Antigorite 308 G |  | | Book | | Geology of Unst and Fetlar in Shetland The district described in this memoir is covered by Sheet 131...publications of the Survey dealing with this district and adjoining district. Books Memoirs Geology of Yell and...Exploration 138 Two Outline of the geology of the district 4 Basement to the Shetland Ophiolite-complex 4...FIGURES Physiographical and locality map of the district 2 Simplified map of the Valla Field and Lamb Hoga...3 Tectonic blocks forming the Unst and Fetlar district 6 4 Diagrammatic section through the Shetland |  | | Journal (article/letter/editorial) | | oxalate, occurs at the lichen/rock interface on serpentinite colonized by Lecanora atra at Mill of Johnston...the rock/lichen interface (fig. I) of a serpentinite outcrop (NJ 572247) directly opposite Mill of Johnston...Clatt road approximately 6 km WSW of Insch. The outcrop is sparsely covered with various lichens, the mineral... 838 M. J. W I L S O N E T AL. FIG. I. Serpentinite encrusted with Lecanora atra, part of which...the weathered surface of a lichen-encrusted serpentinite. Evidently, the mineral originates following |  | | Journal (article/letter/editorial) | | NW-SO streichenden Anomalien bestiitigen. Die Serpentinite stellen Teile eines zerscherten Ophiolithkomplexes...isolated anomalies represents a polyphase deformed serpentinite emplacement overlain by coarse grained eclogitic...characterized by abundant tectonically emplaced serpentinite bodies. 3.- a southern zone rich in metavolcanics...in the last two domains. They indicate that serpentinite, metagabbro, metabasalt and to a minor extent...foliation attitudes in the area. The intermediate, serpentinite rich zone (U-A, n-B) Most of the localities |  | | Journal (article/letter/editorial) | | form serpentine rock, commonly referred to as serpentinite (figs. 6 and 7). Serpentinites most commonly...cm across. cases is the only polymorph in a serpentinite rock. Antigorite is the second most abundant...vicinity of California (Klein 1993) and is exposed in outcrop over a 50-square-mile area. Chrysotile serpentinites...given asbestiform mineral Figure 6 (right). Serpentinite specimen. Scale bar is 2.54 cm long. Limper...Kendall Hauer photo. Figure 7 (far right). Serpentinite outcrop in a quarry along State Hwy. 49 in the California |  | | Journal (article/letter/editorial) | | com/loi/tigr20 Jade (Nephrite and Jadeitite) and Serpentinite: Metasomatic Connections a G. E. Harlow & S...Sorensen (2005) Jade (Nephrite and Jadeitite) and Serpentinite: Metasomatic Connections, International Geology...reserved. Jade (Nephrite and Jadeitite) and Serpentinite: Metasomatic Connections G. E. HARLOW1 American...Avenue, NW, P. O. Box 37012, NHB-119, Washington, District of Columbia 20013-7012 Abstract The lapidary...that are intimately connected with their host serpentinite bodies and convergent-margin petrotectonics |  | | Report (issue) | | --Idealized sketch map of a typical steatite-grit-serpentinite body ................................... 6 ...and carbonate at the margins), and a core of serpentinite. The steatite zone, at the outer border of the...thickness. The grit zone, between the steatite and serpentinite zones, is commonly several feet to a few tens...ultramafic bodies formed almost entirely of serpentinite to bodies· made up exclusively of grit and steatite...rather markedly with those of the country rock. Serpentinite and grit show local schistosity that varies | | Swayze, Gregg A., Higgins, Chris T., Clinkenbeard, John P., Kokaly, Raymond F., Clark, Roger N., Meeker, Gregory P., Sutley, Stephen J. (2004) Preliminary report on using imaging spectroscopy to map ultramafic rocks, serpentinites, and tremolite-actinolite-bearing rocks in California. Open-File Report 2004-1304. US Geological Survey doi:10.3133/ofr20041304 | Report (issue) | | in El Dorado and Plumas Counties that contain serpentinite and ultramafic rocks as part of an experiment...Serpentine has been detected outside of known serpentinite outcrop areas, mostly as aggregate that covers dirt...predominantly, but not exclusively, found in serpentinite and ultramafic rocks, which are common in the...were collected in August 2001 over exposures of serpentinite and ultramafic rocks that were mapped during...Flagstaff Hill line (#14) was flown N-S and includes serpentinite outcrops along the exposed low-water shoreline |  | | Report (issue) | | reflects the strong relative magnetization of serpentinite bodies and shows similar structural trends.... The contrast in magnetic expression of serpentinite and hornblende schist, the other major rock unit...delineation of serpentinite masses beneath areas of shallow alluvial cover. Serpentinite is inferred to...southeast of the ancient workings. Areas of serpentinite outcrop are characterized by a pattern of intense...(1981), supported by drilling data, that the serpentinite is essentially rootless, that is, that it overlies |  | | Journal (article/letter/editorial) | | gabbro and dykes to form steeper slopes than serpentinite. The 90th percentile of each lithology slope...slope, is 43³, 39³ and 32³ for gabbro, dykes and serpentinite, respectively. Lithologic control on slope is...classi¢cations `gabbro' and `serpentinite' also include talus of gabbro and serpentinite, respectively. The classi¢cation...non-transform discontinuity [19]. The dykes, gabbro and serpentinite data show di¡erent maximum slopes characterised...slopes in the distributions. Fig. 5 shows that serpentinite has few slopes above 40³, compared to gabbro |  | | Journal (article/letter/editorial) | | chrysotile from fracture fillings in a brucitebearing serpentinite at Nakauri, Aichi Prefecture, Japan, and has...46, 1-5. Marcopoulos, T., and Economou, M. (1981) Am. Mineral. 66, 1020-1. Oswald, S. G., and Crook, W...(1875). It was found in a clay bed near a serpentinite outcrop at Mineral Hill, Delaware County, Pennsylvania |  | | Report (issue) | | Quartzite....................................... Serpentinite, marble, and metabasalt............ Ultramafic-carbonate...Metabasalt, meta-andesite, carbonate rock, and serpentinite......................... Sandstone, conglomerate.................. Metaquartzose sandstone and serpentinite... Metabasalt.................................Amphibolite..................................... Serpentinite, and metavolcanic and carbonate rocks.........from: metasiltstone and carbonate rocks; and serpentinite, marble, and metabasalt.... 8 3. 4. 5. Estimated |
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