 | Fischer, Lennart A., Erdmann, Martin, France, Lydéric, Wolff, Paul E., Deloule, Etienne, Zhang, Chao, Godard, Marguerite, Koepke, Jürgen (2016) Trace element evidence for anatexis at oceanic magma chamber roofs and the role of partial melts for contamination of fresh MORB. Lithos, 260. 1-8 doi:10.1016/j.lithos.2016.05.001 | Journal (article/letter/editorial) | | contamination of fresh MORB Lennart A. Fischer, Martin Erdmann, Lydéric France, Paul E. Wolff, Etienne Deloule...Please cite this article as: Fischer, Lennart A., Erdmann, Martin, France, Lydéric, Wolff, Paul E., Deloule...ridge AC Oceanic plagiogranite Granoblastic hornfels MORB contamination Conductive boundary layer...thermal, and chemical exchanges. The two-pyroxene hornfels IP recovered from the base of the sheeted dike...partial melting experiments using basalts and hornfels from IODP Site 1256 as starting material. The |  | | Journal (article/letter/editorial) | | Phillips et al. (1981), and the cordierite stability field is from Schreyer (1999). Carbon isotope fractionation...tweezers and dental tools. In very fine-grained hornfels samples, inclusions could not be entirely avoided...MM193Y Sillimanite zone hornfels (3m) –21.09 0.31 MM197A Sillimanite zone hornfels (15m) –21.31 0.22 MM210A...MM210A Sillimanite zone hornfels (20m) –20.79 0.29 MM166F Sillimanite zone hornfels (90m) –21.84 0.22 MM166A...MM166A Sillimanite zone hornfels (130 m) –22.16 0.19 MM166H Sillimanite zone hornfels (140m) –19.15 0.19 MM169B |  | Erdmann, Martin, France, Lydéric, Fischer, Lennart A., Deloule, Etienne, Koepke, Jürgen (2017) Trace elements in anatectic products at the roof of mid-ocean ridge magma chambers: An experimental study. Chemical Geology, 456. 43-57 doi:10.1016/j.chemgeo.2017.03.004 | Journal (article/letter/editorial) | | magma chambers: An experimental study Martin Erdmann, Lydéric France, Lennart A. Fischer, Etienne Deloule...March 2017 Please cite this article as: Martin Erdmann, Lydéric France, Lennart A. Fischer, Etienne Deloule...potential to contaminate MOR basalts and residual hornfels. Here, we simulate the complex igneous and metamorphic...lithologies (i.e., felsic veins and granoblastic hornfels) from the same site. The trace element contents... Oceanic plagiogranites, IP T Granoblastic hornfels, Fast spreading mid-ocean ridge CE PT ED M |  | Lackey, J. S., Erdmann, S., Hark, J. S., Nowak, R. M., Murray, K. E., Clarke, D. B., Valley, J. W. (2011) Tracing garnet origins in granitoid rocks by oxygen isotope analysis: examples from the South Mountain batolith, Nova Scotia. The Canadian Mineralogist, 49 (2) 417-439 doi:10.3749/canmin.49.2.417 | Journal (article/letter/editorial) | | College, Claremont, California 91711, USA Saskia ERDMANN Geological Survey of Canada, Ottawa, Ontario K1A...that are reported in the SMB (Abbott et al. 1981, Erdmann et al. 2009). Our results show that d18O distinguishes...Owen et al. 1988, MacDonald 2001, Clarke & Erdmann 2005, Erdmann 2006; Fig. 5), but there are notable variations...batholith, nova scotia & Clarke 1981, Ding 1995, Erdmann 2006). Type-1a garnet occurs locally as disseminated...normal, reverse, or no zoning (Kontak & Corey 1988, Erdmann 2006). Type-1b garnet has been described from monzogranites |  | Zhang, Chao, Koepke, Juergen, Albrecht, Moritz, Horn, Ingo, Holtz, Francois (2017) Apatite in the dike-gabbro transition zone of mid-ocean ridge: Evidence for brine assimilation by axial melt lens. American Mineralogist, 102 (3) 558-570 doi:10.2138/am-2017-5906 | Journal (article/letter/editorial) | | (Gillis 2008; Koepke et al. 2008; Zhang et al. 2014; Erdmann et al. 2015). In such circumstances, assimilation...dedicated experimental studies (France et al. 2010; Erdmann et al. 2015) indicate that 558 ZHANG ET AL.:...(1000–3000 ppm) in the amphiboles of the pyroxene hornfels that represent the melting residue phase (Koepke...Estimation of the cooling rate of the pyroxene hornfels suggests that there should be multiple events...(diorite) are influenced by contact with pyroxene hornfels (i.e., a contact metamorphism product of the sheeted |  | | Journal (article/letter/editorial) | | model that is based on geochemistry, textures and field relations of cordierite monzogranites, together...among them. They must be distinguished by detailed field relations and chemical relations within granite...been studied from different points of view, from field relations and petrography by Corretgé (1971) to...equivalent to a magmatic origin, according to Erdmann et al. (2005). K-feldspar megacrysts The presence...starting material in those experiments was a spotted hornfels with cordierite and completely devoid of chlorite |  | | Journal (article/letter/editorial) | | of, its country rocks (e.g. Clarke and Erdmann, 2005; Erdmann et al., 2009). At the eastern margin of...obliterated, and the rocks are best described as hornfels. As they occupy similar positions within the contact...interpreted as retrograde. These rocks are NU massive hornfels with annealed cleavage but very well preserved...temperature was varied between PT 800-850°C (Erdmann, 2006), with 850°C yielding the best fit to the...and densities were based on measurements from hornfels about 1100 m from the contact (Cook, 1998; finer- |  | | Journal (article/letter/editorial) | | FROM THE COUNTRY ROCKS D. Barrie CLARKE, Saskia ERDMANN, Hugh SAMSON and Rebecca A. JAMIESON Department...foreign, and peritectic origins (Beard et al. 2005, Erdmann 2006, Clarke 2007, Clarke & Carruzzo 2007). To...particularly prominent in graphitic slates and hornfels, reaching up to 30 modal % in some layers (Betts-Robertson...intergrown with or partly replaced by pyrrhotite. In hornfels adjacent to the contact with granodiorite, pyrite...matrix-derived silicate, graphite, and oxide inclusions. In hornfels close to the contact, silicate inclusions tend |  | | Report (issue) | | stratigraphic position of the large sill below the Sullivan Mine, Kimberly, B.C., and interpretation that the Sullivan...Purcell Lava, exposed 50 km southeast. Samples of hornfels produced by Purcell Lava east northeast of area...the northwest corner of the Libby Quadrangle (Erdmann, 1941). Johns (1970) speculates that Lenia was...it appears to be less than reported elsewhere (Erdmann, The attitude of the fault is steep but imprecisely...109 p. Edwards, F. R., and Bishop, D. T., 1973, Field trip number 11, Belt rocks in the Clark Fork region |  | | Report (issue) | | Trondheim - NTH Norway S. Olerud Geological Survey of Norway Box 3006 N-7001 Trondheim Norway M. Martinsen...N-7034 Trondheim - NTH Norway F. D. Pedersen Norsk Hydro Box 200 N-1321 Stabekk Norway F. S. Nordrum The...The Norwegian Mining Museum N-3600 Kongsberg Norway H. K. Schonwandt Geological Institute University of...aa, 16H7 . t Oretlt. ft /Mm# »f.i Falu copper mine has been continuously mined for more than 900 years...Dahlberg’s Sveda Antiqua et Hodierna. 6 FOREWORD Mining has ancient traditions in Scandinavia and Finland |  | | Journal (article/letter/editorial) | | COUNTRY-ROCK MATERIAL: AN EXPERIMENTAL STUDY Saskia ERDMANN§ Department of Earth Sciences, Dalhousie University...given example, but an integrated approach involving field and textural observations, mineral and whole-rock...assimilation in igneous rocks at the best possible level. Field and textural data may give estimates of the abundance...Bouloton 1992, Clarke et al. 2005, Clarke 2007, Erdmann et al. 2004, Gottesmann & Förster 2004, Maillet...1988, Clarke & Erdmann 2005, Clarke & Halliday 1980, Clarke et al. 1988, 2004, Erdmann et al. 2004, Jamieson |  | | Journal (article/letter/editorial) | | construction activity (i.e., not related to metal or coal mining) are not unique to HRM and have been documented...DRAINAGE Acid rock drainage, also referred to as acid mine drainage (AMD), is a naturally occurring phenomenon...Tantallon leucomonzogranite (Fig. 2). METHODOLOGY Field mapping (1:10 000-scale) was performed during the...wacke hornfels slate siltstone hornfels slate siltstone hornfels hornfels siltstone hornfels Cunard...feld wacke f.g., feld wacke hornfels spotted slate hornfels hornfels hornfels spotted siltstone Bluestone |  | | Journal (article/letter/editorial) | | first time high-precision measurements of high-field-strength element (HFSE) abundances that now permit...hydrated oceanic gabbros at low pressures. Likewise, Erdmann et al. (2015) confirmed the anatexis of only slightly...Coogan 2002) contact aureoles between fine-grained hornfels and coarser grained tonalites were described within...crust around magma lenses (Beard and Lofgren 1991; Erdmann et al. 2015). The conditions for anatexis at the...melts at shallow pressures (Erdmann et al. 2015). The experiments by Erdmann et al. (2015) have also suggested |  | | Report (volume) | | of the samples were prepared and analyzed in the field, in a truck-mounted spectrographic laboratory, by...Peterson with additional measurements obtained in the field by D. L. Peterson. GEOLOGIC SETTING The geology...the Sweetgrass Arch to the northeast (Dobbin and Erdmann, 1955). This trend, first described as the Genou...shows the major distortions of the earth's gravity field in this area. The regional gradient dips gently...present earth's field. Effects of remanent magnetism not in the direction of the earth's field has not been |  | | Report (issue) | | that the sulfide mineralization at the Sullivan Mine, Kimberly, B.C., formed in sediment that accumulated...are 10?5±/-(6^) Ma, the K- AT apparent age of hornfels produced by Purcell Lava east-northeast of the...the northwest corner of the Libby Quadrangle (Erdmann, 1941). Within the map area, Stratigraphic throw...Montana: U.S. Geol. Survey Bulletin 384, 7-108. Erdmann, C.E., 1941, Geology of dam sites on the upper...36 p. Edmunds, F. R., and Bishop, D. T., 1973, Field trip number 11, Belt rocks in the Clark Fork region |  | Zhang, Chao, Wang, Lian-Xun, Marks, Michael A.W., France, Lydéric, Koepke, Juergen (2017) Volatiles (CO 2 , S, F, Cl, Br) in the dike-gabbro transition zone at IODP Hole 1256D: Magmatic imprint versus hydrothermal influence at fast-spreading mid-ocean ridge. Chemical Geology, 459. 43-60 doi:10.1016/j.chemgeo.2017.04.002 | Journal (article/letter/editorial) | | 2003; France et al., 2009; France et al., 2014; Erdmann et al., 2015). Thus, CR investigating the volatile...petrographic study T of Koepke et al. (2008), a "dry" hornfels assemblage includes clinopyroxene, orthopyroxene...granulite-facies condition. In contrast, a "wet" CR hornfels assemblage is characterized by hornblende and...(Fig. 4b). In some nearby mm-scale domains in the hornfels, pyroxenes have been intensively replaced by smectite...circulation, rather than being albite epidote hornfels (mafic contact metamorphic AC rock). Except |  | Erdmann, Martin, Fischer, Lennart A., France, Lydéric, Zhang, Chao, Godard, Marguerite, Koepke, Jürgen (2015) Anatexis at the roof of an oceanic magma chamber at IODP Site 1256 (equatorial Pacific): an experimental study. Contributions to Mineralogy and Petrology, 169 (4) doi:10.1007/s00410-015-1136-5 | Journal (article/letter/editorial) | | felsic composition and granoblastic, two-pyroxene hornfels, representing the residue after partial melting...partially or fully recrystallized granoblastic hornfels. Results show that extensively altered starting...which is available to authorized users. * Martin Erdmann m.erdmann@mineralogie.uni‑hannover.de 1 Institut...basalts from the lower sheeted dikes. Two-pyroxene hornfels, the assumed residue, were reproduced only at...(1000–1050 °C; peak thermal overprint of two-pyroxene hornfels) could only be reproduced in the experimental |  | | Book | | syenite Igneous breccia Pegmatites Marble xenoliths Hornfels (collar and xenoliths) Sodalitolite segregations...island of Laven in the Langesundfjord District of Norway. Interestingly, and in contrast to its unusual...1981 to the present) for organizing and managing field trips to the quarry. We are very grateful to the...as did Robert P. Wares, Vice-President of Osisko Mining Inc. in charge of Exploration and Resource Development...the time unknown (it was discovered in 1835 in Norway). The compact gray-black shale resembling basalt |  | | Report (issue) | | GEOLOGY OF PERMIAN ROCKS IN THE WESTERN PHOSPHATE FIELD GEOLOGICAL SURVEY PROFESSIONAL PAPER 313-F...enclosing rocks at north end of western phosphate field) with measured sections, chemical analyses, and...PLATE 30. Map of central western Montana phosphate field showing sample localities and areas underlain by..._________________________________ 2. Permian rocks in Dissett mine, Montana, lot 1386_____-_--________-____--______________--__-_...Shale Member of Phosphoria Formation in Moonlight mine, Montana, lot 1340. _ _ _ 4. Measured section of |  | Samadi, Ramin, Mirnejad, Hassan, Kawabata, Hiroshi, Harris, Chris, Valizadeh, Mohammad Vali, Gazel, Esteban (2014) Magmatic garnet in the Triassic (215 Ma) Dehnow pluton of NE Iran and its petrogenetic significance. International Geology Review, 56 (5) 596-621 doi:10.1080/00206814.2014.880659 | Journal (article/letter/editorial) | | consisting of welllayered slate, phyllite, schist, hornfels, marble, quartzite, and skarn. The main lithological...the DTG pluton are hornfels and mica schist (Figure 1B). The narrow aureole of hornfels that surrounds the...formed from mica schist (Figure 2A). Outside the hornfels aureole, mica schist occurs with a considerable...pluton, the hornfels, and mica schist. Figure 2. (A) Outcrop of garnet-bearing hornfels and adjacent...visible; (E) hand specimens of garnet-bearing hornfels; (F) hand specimens of garnet-bearing mica schist |  | | Book | | nelsonite (Nelson County, Virginia), nevadite, norite (Norway), pacificite, tinguaite (Tingua Mountains, Brazil)...McGrawHill. Fay, Albert H. 1920. Glossary of the mining and mineral industry. U.S. Bureau of Mines Bulletin...clinopyroxene by International (augite). [Norge (Norway), original locality) Union of Geological Sciences...series), with a little quartz. [Aker parish, Oslo, Norway] (Brogger in 1890) alabaster sed. 1. Massive, usually...serpentinized peridotite in Ontario. Miners’ term. [ Alexo mine, Dundonald Township, Ontario] algarite sed. Bitumen |  | Zandomeni, Priscila S., Moreno, Juan A., Verdecchia, Sebastián O., Baldo, Edgardo G., Dahlquist, Juan A., Morales Cámera, Matías M., Balbis, Catalina, Benítez, Manuela, Serra-Varela, Samanta, Lembo Wuest, Carlos I. (2021) Crystallization Conditions and Petrogenetic Characterization of Metaluminous to Peraluminous Calc-Alkaline Orogenic Granitoids from Mineralogical Systematics: The Case of the Cambrian Magmatism from the Sierra de Guasayán (Argentina) Minerals, 11 (2) 166 doi:10.3390/min11020166 | Journal (article/letter/editorial) | | to [67]. Minerals 2021, 11, 166 6 of 21 4. Field Relations and Petrography 4.1. The Guasayán Pluton...the development of cordierite-biotite-K-feldspar hornfels. It contains metamorphic septa (10–30 m long)...metamorphic aureole with cordierite-biotite-K-feldspar hornfels. It contains abundant rectangular metamorphic...ilmenite, epidote, and allanite. 7 of 21 Figure 3. Field photographs and photomicrographs of the granitoids...and soil development hinders the observation of field relations. It is an equigranular medium- to fine-grained |  | | Report (volume) | | ............................................. Hornfels..................................................................................... Red Lodge mining district.........................................Silver Run, and Line Creek Plateaus, Red Lodge mining district.........................................Survey, and appraisal of known mines, prospects, and mining claims was made by the U.S. Bureau of Mines. The...rocks, part of the extensive Absaroka volcanic field to the southwest. The total extent of Tertiary rocks |  | | Report (volume) | | greater than 2,000 feet below the surface. Gold mining has been abandoned. The gravel deposits are utilized...shows alteration to a diopside-quartz-calcite-hornfels which includes minor amounts of plagioclase. Chlorite...common alteration of the Newland rocks is to dense hornfels containing abundant diopside or amphibole, or...Flathead and the Spokane Formations near the Carp mine in the Philipsburg quadrangle. At another locality...thickness of the bed at depth would make phosphate mining economical is unknown. B26 CONTRIBUTIONS TO |  | | Report (volume) | | _______________ ------ __ ------Northern volcanic field __ ----- _____ ------ __ ----_________________ Plains...is bounded by a northern and southern volcanic field, each of which covers an area of about 300 square...arch and the eastern part of the northern volcanic field lie in this quadrangle. Although there are many...GEOLOGY layered units in the northern volcanic :field have a general eastward strike and dip south toward... In the Lloyd quadrangle the northern volcanic field is essentially a monoclinal structure dipping southward |
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