 | | Report (issue) | | Triassic deposits 31 Mineral localities 38 District of Columbia Mavtrl a Tirl IWlCfci JT XClilUl...high. Figure 26. Location of the Point of Rocks goethite locality (1), Point of Rocks, Maryland, and the... Figure 27. Lustrous black goethite from the Point of Rocks goethite locality, Point of Rocks, Maryland...urban and suburban, and subject to rapid changes in land use and ownership. This means that roadcuts, mines...text, especially Herb I I i ;Corbett and John Griesbach. >i i Special thanks are given to Clifford |  | | Journal (article/letter/editorial) | | Rock Creek Park, about one-half mile north of the District of Columbia. I found it where a hill is being... alongside Rock Creek Park, about y? mile north of District of Columbia in Montgomery County, Maryland." —...bronze-yellow, have been found at the Hilltop mine, Organ District, Dona Ana Co., N . Mex. N E W YORK—"You probably...all reddish-brown in color, of (a maganiferous goethite) on a dark good quality—and very, very interesting...erals. "There's enough of the four minerals with goethite in chemical composition and crystal system, but |  | | Journal (article/letter/editorial) | | letter dated May 15, 1954, comes from John O. Griesbach, 3400-13th St. S. E., Washington 20, D. C. 372...J. DISTRICT OF COLUMBIA — The following item, dated May 15, 1954, is sent in by John O. Griesbach, 3400-13th...the children, we have found a number of limonite-goethite géodes —• not much good but interesting, also...schists also. "The largest of the limonite and goethite géodes I have found thus far along Oxon Run is...dark gray basalt and coming from the Lost River district in Blackfoot, Bingham Co., Idaho, have been donated |  | | Journal (article/letter/editorial) | | donated 3 interesting minerals from the Castle Dome District of Yuma Co., Ariz. The specimens are fluorite...Del. DISTRICT OF COLUMBIA—The following notes, dated Dec. 25, 1954, come from John O. Griesbach, 12217...St., Wheaton, Silver Spring, Md. "In one of the goethite and limonite concretions which I have found on...limonite-goethite géodes are other bits of wood fossil materials which are in part replaced by goethite and...sections of excellent goethite géodes I have found in the Oxon Run district. The goethite ranges from 1/8" |  | | Journal (article/letter/editorial) | | Club. Are you making use of your Regional and District Representatives ? Their names and addresses are...the Federation. Why not invite your Regional or District Representative to one of your club meetings? ROCKS...Alverson, Editor. The Mineralogical Society of the District of Columbia, Inc. CLASS II. Bulletins of three...Mineralogical Society. DISTRICT OF COLUMBIA The Mineralogical Society of the District of Columbia, Inc.,...well received auction under the auspices of John Griesbach, who spent the past year in Sigon. ***** The Gem |  | | Report (issue) | | investigation are found in the western Chagai District, in North Waziristan Agency, and in the Salt Range...one locality in Chagai District and in the southern part of the Hazara District. Zinc, antimony, and...in order of priority. 1. Localities in Chagai District, Quetta Division (fig. 2) a. The Saindak (Gu-4)...Amir Ghah (Cu-5) area in the western part of the district contains scattered outcrops of intrusive rock...(Pb-4) in Chagai District (fig. 2) and Paswal (Pb-10) and Mihal (Pb-12) in Hazara District (fig. 7). The |  | Szurlies, Michael, Bachmann, Gerhard H, Menning, Manfred, Nowaczyk, Norbert R, Käding, Karl-C (2003) Magnetostratigraphy and high-resolution lithostratigraphy of the Permian–Triassic boundary interval in Central Germany. Earth and Planetary Science Letters, 212 (3) 263-278 doi:10.1016/s0012-821x(03)00288-7 | Journal (article/letter/editorial) | | unblocking temperature of V80‡C, identi¢ed as probably goethite (Fig. 5b). The gray sandstones in general contain...contain three magnetic minerals (Fig. 5c). Beside goethite and magnetite, there is another mineral with a...indicating hematite. In the red-brown sandstones, goethite and hematite are recognized from maximum unblocking...supported by a graduation grant for M.S. from the Land Sachsen^Anhalt.[RV] References [1] F. v. Alberti...Permian-Triassic of the Gartnerkofel-1 Core (Carnic Alps, Austria): Carbon and [49] [50] [51] [52] [53] [54] |  | | Journal (article/letter/editorial) | | Pennsylvania for Goethite concretions, Kaolinite clay and Limonite concretions. DISTRICT OF COLUMBIA The...Virginia......... The Mineralogical Society to] the District of Columbia heard Dr. H. G. Siegrist of the Geology...got something. ........ John Gruger and John Griesbach showed specimens and discussed 'The Minerals of |  | | Journal (article/letter/editorial) | | the Griesbachian stage in the Arctic, occurs at Griesbach Creek on Axel Heiberg Island (section G R C )...of section MB. Section G R C was sampled along Griesbach Creek on northwestern Axel Heiberg Island (80...division = 5 x 10 -5 A / m . (C) Sample GRC 78.21 (Griesbach Creek, late Griesbachian age, greenish siltstone);...o n - 5 x 1 0 -3 A / m . (D) Sample GRC 88.9 (Griesbach Creek, Late Griesbachian age, greenish-red siltstone);...suggests that a high coercitivity mineral, such as goethite, is an important carrier of secondary magnetization |  | | Journal (article/letter/editorial) | | charts, maps and talked of the formation of the land structure. He also showed a collection of Florida...President of the Mineralogical Society of the District of Columbia, with the help of Doug Alverson, described...the different ages of life in Maryland. John Griesbach, chairman of the Education Committee, shared a...mineral, lapidary and junior mineral division. DISTRICT OF COLUMBIA "Minerals in the Marine Environment"...Corwin's talk to the Mineralogical Society of the District of Columbia, Inc. A Field trip to the Lehigh Portland |  | | Journal (article/letter/editorial) | | been dug out of a dredged >_anal. DISTRICT OF COLUMBIA—John O. Griesbach, 12217 Centerhill St., Wheaton...sends in some ROCKS AND MINERALS notes on the District. In his letter, dated Dec. 26, 1954, he writes:...were some attractive needle-like xls of black goethite which came from his area (Melrose is in Monroe...thanks. Do hope that the report of my find of Goethite needlelike, from this locality may appear in the...calcite of different colors, studded with jet-black Goethite needles. I was spellbound and certainly surprised |  | | Journal (article/letter/editorial) | | Pennsylvania for zeolites and other minerals found there. DISTRICT OF COLUMBIA Downloaded by [University of Arizona]...Ciquelli (pro nounced sickly) Sand Bank for calcite, goethite, hematite in roses, and other minerals. Many of...crystal. This he called his Totem Pole Quartz! John Griesbach showed a diamond from Siberia. Ruth Wertz dis |  | | Journal (article/letter/editorial) | | is in ravine to the left. Ask permission to cross land. Go up gully to fork in gully, take left branch...specimen consisting of tiny, lustrous, black xls of goethite with small pale smoky quartz xls — both on drusy...which in turn coats dark gray limestone. Some goethite penetrates the gemmy quartz xls —in fact a number...Doesn't this sound reasonable?" — item from John O. Griesbach, 3957 Wendy Court, Wheaton, Md. MASSACHUSETTS |  | | Journal (article/letter/editorial) | | Washington, D.C, Ine Mineralogieal Society of the District of Columbia Westchester Mineral and Gem Society...Identification of Minerals" by John Griesbach was enjoyed by all. DISTRICT OF COLUMBIA Thirty-five members...iron ore, pyrolusite, manganite, psilomelane, goethite, hematite and chert. Rudy Bland from the Richmond...for cutting. The Mineralogical Society of the District of Columbia went on a field trip to the Keystone |  | | Journal (article/letter/editorial) | | mineral 5 5 10.0 Freyersbach mineral 29 18 13.7 Griesbach mineral 217 160 12.6 pH Na K Ca Mg Fe Mn Cl HCO3... The eect of transferred to the solid phase goethite in the oxidizing environment of the shallow level...waters are strongly oversaturated with respect to goethite or hematite (Stober, 1995). Dissolution of apatite...7:5 O2 )Fe OH 3 4 SO2ÿ 4 8 H pyrite 6 goethite which is ultimately inherent in and expressed...that involve pyrite dissolution, Fe oxidation and goethite precipitation. The overall process releases SO4 |  | Ghosh, Nilotpal, Basu, Asish R., Bhargava, O.N., Shukla, U.K., Ghatak, Arundhuti, Garzione, Carmala N., Ahluwalia, Arun D. (2016) Catastrophic environmental transition at the Permian-Triassic Neo-Tethyan margin of Gondwanaland: Geochemical, isotopic and sedimentological evidence in the Spiti Valley, India. Gondwana Research, 34. 324-345 doi:10.1016/j.gr.2015.04.006 | Journal (article/letter/editorial) | | literature, beginning with the pioneering study of Griesbach (1891). ED An early study (Ghosh et al., 2002)...oxy-hydroxide phases like RI P ferrihydrite or goethite. This is evident in the ferruginous layer of Guling-1...transgression, when clastic SC sediment supply from land areas were blocked leading to deposition of carbonates...following a C3 pathway SC similar to those on land plants. A fraction of this organic matter, with...increased biomass decomposition in water and on land, would have caused arid, unstable environmental |  | | Journal (article/letter/editorial) | | "Cassiterite is the only tin mineral found in the district. The crystals are black or a dark mahogany color...crystals are largely found in the pegmatites of the district. "In the general area the following minerals are...1952, issue of ROCKS AND MINERALS by Mr. John O. Griesbach under "Arkansas" in "World News on Mineral Occurrences...inclusions ; first red hematite, second black goethite, and third a light brown straw colored needle...specimens of bornite have been found in the Encampment district, Carbon Co., Wyo. ALASKA — Mottled jasper, mostly |  | | Journal (article/letter/editorial) | | 1016/j.epsl.2011.11.043 events in the sea and on land. A direct biostratigraphic comparison of continental...high-coercivity magnetic minerals, such as hematite and goethite. For the subsequent demagnetization treatments...indicating the presence of the high-coercivity mineral goethite. 1 0 1 10 100 1000 1 0 10000 0 1 10 ...(Glen et al., 2009 and references therein), the Griesbach Creek, Canada (Hounslow and Muttoni, 2010; Ogg...Retallack, G.J., 1995. Permian–Triassic life crisis on land. Science 267, 77–80. Richter-Bernburg, G., 1955 |  | | Report (issue) | | cpidotc, crythritc, fluorite, galena, garnet, goethite, gold, graphite, gypsum, halloysitc, hematite...fergusonite, fluorapatitc, fluorite, gahnitc, galena, goethite, gold, golden beryl, graphite, gvpsum, hatchettolite...chalcosiderite, chlori toid, cryptomclane, epidote, goethite, gypsum, halite, hematite, iddingsite, ilmenite...chalcopyritc, dioctohcdral vermiculitc, galena, gibbsitc, goethite, gold, hematite, magnetite, malachite, olivine...corundum, enstatite, epidote, feldspar, garnet, goethite, golden beryl, hematite, hyacinth, hydrobiotite |  | | Book | | distinctive ceratitic ammonoid, Otoceras woodwardi Griesbach, marked a level approximately equivalent to the...earlier in Kashmir and Tibet than in South China or Austria, and Italy by a prominent geochemical event. Italian...core, drilled near Nassfeld in the Carnic Alps of Austria, Holser et al. (1989) record a sharp increase in...intermediate volcanism, which may have blanketed large land areas with ash, caused great forest fires, and contributed...the Otoceras woodwardi triggered forest fires on land, and inhibited photosynthesis by Zone in a section |  | | Journal (issue) | | unimportant. I. R. Vawdry, a well-known figure of the district around St. George, came across a seam of this...risk of being overpowered by the scenery of that district. N ear, far, and at middle distance, he is conf...lately discovered nephrite jade in situ on his OWN land in the adjoining (Napa) County. Can any rockhound...earthy grains of greenockite. The background of goethite and limonite n1ade a perfect setting for the calamine...surface of several types of rock from the Tin tic district in Utah. A torbernite-like crystal in which the |  | | Journal (issue) | | at the Ruggles and Palermo locali ties in N.H. Goethite as pseudomorphs after pyrite xls and as rust....disseminated graphite naxes. The marble of Mahren, Austria, °?ce m,ncd for graphite. In Alabama there is a...sent in by Marvin Klibonoff, President of the Rock land County Mineral and Gem Society of New York. Anyone...material have been mined. In Bleiberg, Carinthia, Austria it occurred as thick, fairly hard, lustrous masses...minerals on limonite at the Kelly mine. Macdalena district, Socorro Co. HYDROZINCITE has been found in good |  | | Journal (article/letter/editorial) | | chondrites include phyllosilicates, maghemite, goethite, and ferrihydrite. The ferric proportion that...et Cosmochimica Acta 57:1105–1114. Meisel W., Griesbach P., Grabke H. J., and Gutlich P. 1990. Quantitative |  | Stevens, John G., Khasanov, Airat M., Miller, J. W., Pollak, Herman, Li, Zhe - Eds. (2002) Mössbauer Mineral Handbook (2nd ed.) Mössbauer Effect Data Center, Asheville, NC. | Book (edition) | | The Magnetic Structure and Hyperfine Field of Goethite (alpha-FeOOH) E.Frank, Nuovo Cimento B 58, 407-12(1968)...Characteristics of a Cummingtonite from Yellowknife,District of Mackenzie K.K.Khristoforov, L.P.Nikitina, L... 7, 2121-30(1974) Mossbauer Study of Egyptian Goethite 74E022 M.D.Evdokimov, and S.B.Tomilov, Miner Para... Mossbauer Spectroscopy on Naturally Occuring Goethite (See 75H027) G.N.Goncharov, and S.B.Tomilov, Zap...Magnetic Hyperfine Field in Naturally Occuring Goethite B.A.Goodman, Am. Mineral. 61, 169(1976) On the |  | | Report (issue) | | VIENNA, 1986 IAEA-TECDOC-361 Printed by the IAEA in Austria January 1986 PLEASE BE AWARE THAT ALL OF THE...Structure-related uranium mineralization in the Westmoreland district, Queensland, Australia .........................in vein-type deposits of Central Iran (Anarak District) ............. M.R. Espahbod 415 INTRODUCTION...well known sulphide ore province, the Skellefte district (Fig. 1). Since geological investigations, including... 5. Detailed geological map of the Arvidsjaur district showing locations of studied granites and the |
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