 | | Journal (article/letter/editorial) | | wide intervals by blocks of red granitoid rock and quartz porphyry, which must once have been reefs in the...on the upper Ubangi is still in a rudimentary state, and its navigation was a matter of much difficulty...populous villages; among the causes mentioned for this state of things being (in addition to famine, the attacks...at the water-parting-are, like the Bonjos, in a state of great misery, though formerly possessed of a...trees, recalls the fertile belt of the Western Sudan, of which all the characteristic trees except the |  | | Journal (article/letter/editorial) | | between the Paleozoic carbonate sequences and Eocene quartz latltes in the vicinity of East Tintic ( Utah)...March 2015 INTERNATIONAL GEOLOGY REVIEW In the Saras a mercury ore zone of the Gornyy Altay, mineralization...10 subsurface workings; 11 - sample localities. quartz-hematite composition. Then follow the zones: kaolinite... consists of sandy dolomites. As a result, the quartz latite vitrophyres have been transformed in a band...all cases, dickite (see fig. 4d), associated with quartz and occasionally muscovite, predominates, according |  | | Journal (article/letter/editorial) | | vCO o N % Saras granodiorite Loukoula-Bikossi: Amphibolites, leptynites...a Dextral Transpressive Regime It is in the Les Saras sector of Congo (see Fig. 1) that the deformation...contact zone is marked out by 10-cm- to 100-cm-long quartz veins that dip on average 50° to the west. On a...deformational data from southern Angola. As far as the northern domain is concerned, the reconstruction proposed...McReath, I. and Sabate, P., 1987, Granitoids of the state of Bahia, Brazil: a review: Rev. Bras. Geo., Vol |  | | Journal (article/letter/editorial) | | plagiogranites (60% d'and~sine, amphibole, biotite, quartz, min~raux opaques) ont ~t~ observes dans les gabbros...en deux endroits au Congo: granito'ides de Les Saras et granodiorite de Ngounda ~ la fronti~re du Cabinda...(Cahen et al., 1978). (iv) La granodiorite de Les Saras (Bessoles et al., 1956) et le granite des Monts...1956. Age apparent de la diorite quartzique des Saras dans le Mayombe (A.E.F.). C.R. Soc. G6ol. Ft., 7...reinterpretation of the Precambrian geology of Northern Angola. Ann. Soc. G~ol. Belg., 102: 205--275. |  | | Journal (article/letter/editorial) | | degree of Greek influence. The mines worked gold-quartz veins, which, as is the case in so many mining...Donald A. MacAlister, " On the Emerald Mines of Northern Etbai," published in this Journal (vol. 16, 1900...etc.; and theFrench administratorsthemselves are Saras, chez les Moroubas," warnedthat,unless they mend |  | | Journal (article/letter/editorial) | | dyke swarms crop out along the coastline of Bahia State, Brazil, and inland in Cameroun and Congo, western...Along the Coast of Bahia State, Brazil The coastal dyke province of Bahia State, eastern Brazil (Fig. 2a)...single dyke and displaced markers in country rocks (quartz veins, pegmatite). With respect to fracture-conduit...(Fig. 3) can be recognised on dykes from the Bahia state coastal province. The most common are: crystal alignments...9 2 4 Ma. Farther to the south, in Minas Gerais state, age dating of mafic dykes yielded the dates of |  | Degler, Reik, Pedrosa-Soares, Antonio, Novo, Tiago, Tedeschi, Mahyra, Silva, Luiz Carlos, Dussin, Ivo, Lana, Cristiano (2018) Rhyacian-Orosirian isotopic records from the basement of the Araçuaí-Ribeira orogenic system (SE Brazil): Links in the Congo-São Francisco palaeocontinent. Precambrian Research, 317. 179-195 doi:10.1016/j.precamres.2018.08.018 | Journal (article/letter/editorial) | | 4Bx). The lighter bands and laminae are rich in quartz and feldspars (generally plagioclase > Kfeldspar)...features resembling volcanic rocks, like corroded quartz and plagioclase phenocrysts. Although most ...transformation of an orthogneiss in rocks very rich in quartz and/or biotite (Novo, 2013). Formerly interpreted...MC-ICP-MS (Neptune-Plus), in the MULTILAB-UERJ (State University of Rio de Janeiro). Isotopic data were...use of ionic exchange conventional techniques in quartz columns of added BIO-RAD-AG-50W-X8 resin. Sm and |  | | Journal (article/letter/editorial) | | a lithologically better defined zone, i.e. the northern fringes of the Indian Shield. The criteria speaking...stringers and nodules of pyrite and besides detrital quartz have lenses of chert. The insoluble residue of...interspaces filled with fine collophane or drusy quartz (Fig. 3). Such rock fragments have at times a fine...and ovules of carbonate and phosphate, pyrite and quartz grains. Pellets and ovules of phosphate and carbonate...of apatite (small grains with high relief) and quartz grains on an intraclast of phosphorite, with black |  | Araujo, Lucas Eduardo de Abreu Barbosa, Heilbron, Monica, Teixeira, Wilson, Dussin, Ivo Antônio, de Morisson Valeriano, Claudio, Bruno, Henrique, Sato, Kei, Paravidini, Gabriel, Castro, Matheus (2021) Siderian to Rhyacian evolution of the Juiz de Fora Complex: Arc fingerprints and correlations within the Minas-Bahia Orogen and the Western Central Africa Belt. Precambrian Research, 359. 106118pp. doi:10.1016/j.precamres.2021.106118 | Journal (article/letter/editorial) | | The preparation was carried out at Rio de Janeiro State University and included grain size reduction with...granulites typically have plagioclase + hypersthene + quartz ± K-feld spar ± diopside paragenesis with retrograde...(mostly recrystallized) + diopside + hypersthene ± quartz ± garnet, some of them with coronitic garnet rims...other tectonic domains within the Southern and Northern segments of the Minas-Bahia orogenic system. Fig...Degler et al., 2018; Barbosa et al., 2018). In the northern portion of the Minas-Bahia orgenic system, two |  | | Book | | iwaUaseg ‘e[esse’y foqat THE GEOLOGY Oe iets SUDAN REPUBLIC BY A.J. WHITEMAN FORD OXN -O SD N PRES...provide a comprehensive account of the geology of the Sudan Republic. In a work of this type one naturally has...little is known of Sudan geology, and to many African geologists this part of ‘Bilad es Sudan’ is very much...and unpublished maps of the Sudan Geological Survey (Fig. 5), the Sudan Topographic Survey, the Land...predominantly desert and semi-desert country like the Sudan with its extremely high temperatures, lack of water | | | Book | | org/details/geologyofsudanreOOOOwhit THE GEOLOGY OF THE SUDAN REPUBLIC BY A. J. WHITEMAN CLARENDON PRESS * OXFORD...provide a comprehensive account of the geology of the Sudan Republic. In a work of this type one naturally has...little is known of Sudan geology, and to many African geologists this part of ‘Bilad es Sudan’ is very much...and unpublished maps of the Sudan Geological Survey (Fig. 5), the Sudan Topographic Survey, the Land...predominantly desert and semi-desert country like the Sudan with its extremely high temperatures, lack of water |  | | Catalog/List | | WHITE PART II PREDOMINANTLY BRITIS •· COR, 1ISH - NORTHERN WITH SOME WORLD SPECIMENS PAULA. LOWE IS INSTRUCTED...lustrous off 'M'lite platy anglesile xtls on milky quartz iron stained quart.z.RF.C.£24 OCX>6 SPHALERITE...metallic anatas!? prisms 10 4mm scaltered with spany quartz xtls on greyish green matrix.RF SPC. C.£15 0014...micro X!ls fo:m1ng modes! coverage on l1montic quartz matrix RF SPC Ml. £12 0024 ALBITE,Tinlagel,Cornwall...botryoidal encrustations of chalcedony coaling milky quartz & chlorile with pale flesh pink mineral. Attractive |  | Huck, Stefan, Stein, Melody, Immenhauser, Adrian, Skelton, Peter W., Christ, Nicolas, Föllmi, Karl B., Heimhofer, Ulrich (2014) Response of proto-North Atlantic carbonate-platform ecosystems to OAE1a-related stressors. Sedimentary Geology, 313. 15-31 doi:10.1016/j.sedgeo.2014.08.003 | Journal (article/letter/editorial) | | widespread platform demise and drowning in the northern Tethyan realm. © 2014 Elsevier B.V. All rights...shallow-marine carbonate platform ecosystems along the Northern Tethyan margin experienced a stepwise demise which...100 km Fig. 1. (A) Paleogeography of western Northern Hemisphere at the Barremian–Aptian boundary (126...Graziano, 2013; Table 1). Profound changes in the Northern Tethyan carbonate platform ecology, however, ...Switzerland) Helvetic Alps (Switzerland, Austria) Northern Subalpine Chains (SE France) Jura and N Subalpine |  | | Journal (issue) | | mechanical watch. It is powered by an exquisite Japanese quartz movement. Besides the hands and the date moving...three col- leagues report four sightings of T. saras/norum males that each followed a courting pair...Connecticut in Storrs revealed that remarkable process. saras/norum regularly eats eggs of sailfin from a horned...Pris- tionchus pacificus (top, it them. in a state lOOx) suspended animation for host beetle to...the population a viable If resilient in Northern Ireland, than had been feared. C. finmarchicus |  | Kuchenbecker, Matheus, Pedrosa-Soares, Antônio Carlos, Babinski, Marly, Fanning, Mark (2015) Detrital zircon age patterns and provenance assessment for pre-glacial to post-glacial successions of the Neoproterozoic Macaúbas Group, Araçuaí orogen, Brazil. Precambrian Research, 266. 12-26 doi:10.1016/j.precamres.2015.04.016 | Journal (article/letter/editorial) | | thick sedimentary pile cropping out mostly in the northern sector of the Araçuaí orogen (Fig. 2). The group...Jequitinhonha River and BR-367 highway (Fig. 2). It is a quartz-rich biotite-bearing metasandstone, and the associated... along the Porteirinha basement block, in the northern Espinhaço Ridge (Knauer et al. 2007). In the Iron...(Machado et al. 1996, Hartmann et al. 2006). In the northern São Francisco Craton, the Contendas-Mirante supracrustal...Craton Page 20 of 47 (Ernst et al. 2014). In the northern Espinhaço Supergroup, volcanic rocks of the Bomba |  | | Book (volume) | | GS-4, GS-275, GS-427, and GS-539, by United States State Department Grant SCC-29658, and by Smithsonian Institution...Republic in Egyptology which I did not have. of Sudan, requesting that international action be As a prehistorian...would conduct salvage operations in both Egypt and Sudan. This invitation was gratefully accepted, and the...funds were provided by several grants from the U.S. State Department, the National Science Foundation, the...Educational and Cultural Affairs of the Department of State, and Drs. Albert C. Spaulding, Allan H. Smith, and |  | | Book (volume) | | his field of observa tion lay mainly 111 Mysore State, ,vh1ch lat er becarne a classic area. J-Ie recognized...Dharwar" from the district (no,v- in 1\1:ysore State) in which he first recognized the schistose rocks...determinations have shown that the real Dharwars in Mysore State are older than both the Eastern Ghats and the Satpura...examination of the I~olar schist belt in l\lfysore State, and arrived at some v-er:f important conclusions...be definitely recognized anyvvhere in l\fysore State. FERMOR (1909, p. 998) found eYidence of intrusive |  | | Report (issue) | | principal minerals in probable order of abundance are quartz, alunita, pyrophyllite, kaolin grotp clays (kaolinlte...associated with other »3tniyfttitf particularly quartz* Its moat eosaaan ooowrrwioe la in a banded rode...of fracturing, Tbo light colored band «L *c quartz and tha darker gr/Jy oi*es ar& pod-Ilka jaaaaws...the bands pass. In a few specimens, small white quartz veins of a second generation cut In irregular fashion...unsuccessful because it iff either in an amorphous state or is not sufficiently abundant to detect* However |  | | Journal (article/letter/editorial) | | argiles massives sont parsem6es de gros grains de quartz 6mouss6s et mats d'origine 6olienne (Van Daalhoff...nombreux (environ 3%) h6t6rog6nes (quartzites, quartz, roches magmatiques et m6tamorphiques ...) de 5...mod6le propos6 comprend une plaine alluviale ~ quartz 6oliens repr6sentant un environnement lacustre...observe au moins 10 m de calcaires gr6seux massifs, h quartz 6oliens, en lamines obliques planes, fortement...gypse, sont fr6quentes ainsi que des grains de quartz millim6triques. (b) Les environnements sOdimentaires |  | | Journal (article/letter/editorial) | | haveheardandexperienced,cannot easilybe met witll. They live in a state of perpetual enmity and injurious anfljealousy amongthemselves...roadwasveryrocky: theyobserved granite,anal a large massof quartz,and others of conglomerate, hypersthenescatteredabout...particularly Mr. Thomson. Theirfarms werein a high state of cultivation: the fundi,theirstaS of life, had...greatvarietyof dovesand svood-pigeons, spots. There saras manyof whichare neverseen near the sea-coast. The |  | Feybesse, J.L., Johan, V., Triboulet, C., Guerrot, C., Mayaga-Mikolo, F., Bouchot, V., Eko N'dong, J. (1998) The West Central African belt: a model of 2.5–2.0Ga accretion and two-phase orogenic evolution. Precambrian Research, 87 (3) 161-216 doi:10.1016/s0301-9268(97)00053-3 | Journal (article/letter/editorial) | | amphibolites. ´ ´ 15, Ayem unit: sericite schist; quartz schist; mica schist; metasandstone and metapelite...Okanda series s.s. 4–6, Ayem unit: 4, sericite and quartz schist; 5, mica schist with intercalations of plagioclase...schist; (d ) polygenetic conglomerate (containing quartz, granite, orthogneiss and quartzite pebbles) and...of the North Equatorial Belt, which marks the northern border of the western part of the Congo craton...et al., 1992). ´ 4.3. Ikobe–Waka block ´ In its northern part the Ikobe–Waka block ´ [Fig. 2(b)] comprises |  | | Report (volume) | | perspectives on accretion and deformation in the northern East African Orogen and the assembly of Gondwana...the suture between East and West Gondwana at the northern end of the East African Orogen. Subduction started...orogenic belts on the present eastern, western and northern margins of southern Africa south of the equator...Shield and in other terranes that formed along the northern border of Amazonia and West Africa. An additional...SG and NG, southern and northern Grenville Province, respectively; E, northern Ellesmere Island; R, Rockall; |  | | Report (issue) | | Kevin Granite and neighboring Precambrian rocks, northern Sawatch Range, Colorado: Geol. Soc. America Bull...method of isotope analysis of zircons in natural state: Compt. Rend., v. 280, no. 22, group 9, p . 5849-5851...considerations on the different influence of solid state diffusion of isotopes on their proportions in minerals... H., Radiometric ages of zircon and biotite in quartz diorite, Eights Coast, Antarctica: U. S. Geol....Stillman, C. J., A review of age determinations from Northern Rhodesia, Econ. Geol. , v. 59, no. 6, p. 961-981 |  | | Report (issue) | | metaaorphisffl teat affeetad the rocks surrounding Saras? Peak. Pegsttites of the Keystone district and other...1#75> *°& &* «*«* sround lead sad Desdtjood in the northern Slack Bills beoanw tbs center of greatest interest...as t&« feegiaalag of litMua adnln^ la the United State** The IStta ndne has been operated on & siaall «oale...its ralatioa to t£$ rs^ionai atrxictur« of t&e northern Bleck Hillg; S, D. School Mii^ss 3. M. thesis...Slaughter, A* L*. 19^*9 5 Structure of a part of the northern Bi^slt HLlln sad the Somtaiee alaa, Lead, a. D |  | | Report (issue) | | 1975. xvii, 1093 p.: PL8823.5 .S451 1974 TOZ [AFR. SUDAN Y 81] ABINGDON (ENGLAND) • ANTIQUITIES. Archaeology...investigations at the engine mill house, Reed Gold Mine State Historic Site, Cabarrus County, North Carolina,...cu/cure. l Ticle. N K1 489.N6 A34 1986 TOZ [AFR. SUDAN Ad 35 d] ADHESIVES. (1987) Horie, C. V. (Charles...cl986. 671 p. : ISBN 92-9028-096-4 (pbk.) TOZ [AFR. SUDAN C 768) ADJUSTMENT (PSYCHOLOGY) Kim, Young Yun. Communication...- Antiquities • Congresses. 2. Archaeology and state • Southern States • Congresses. 1. Keel, Bennie |
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