Information Sheet 1E: the Dartmoor Granite and Associated Igneous Rocks
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Dartmoor National Park, Devon County Council, South Hams
Dartmoor National Park, Devon County Council, South Hams District Council, Teignbridge District Council and Torbay Council are consulting on a draft South Hams SAC Greater Horseshoe Bat Supplementary Planning Document . This Supplementary Planning Document is being prepared to provide guidance on the implementation of policies relating to the South Hams Special Area of Conservation, specifically on the population of greater horseshoe bats for which the site is (in part) designated. The document updates and replaces the South Hams Special Area of Conservation Greater Horseshoe Bat Consultation Zone Planning Guidance published by Natural England in 2010 . The document is aimed at those preparing to submit and those determining and commenting upon planning applications across the five Local Planning Authorities including: land owners, developers, planning agents, ecological consultants, Council Members and other organisations. Details of the consultation can be found online at: https://new.devon.gov.uk/planning/planning-policies/other-county-policy-and- guidance/south-hams-sac-spd-consultation . The consultation runs from Monday 16 th April until Wednesday 30 th May at 5pm . Responses to the consultation should be submitted to [email protected] Please note that all submitted representations will be made publicly available, including on the County Council’s website, with the person/organisation making the representation (but not their personal signatures or email and telephone contact details) being identified. Comments received after the deadline or sent to the other Local Planning Authorities will not be accepted. Given that the consultation is being run by five Local Authorities there may be some duplication, so please accept our apologies if you have received this email from multiple sources. -
Geochemistry of Granitic Aplite-Pegmatite Veins and Sills and Their Minerals from the Sabugal Area, Central Portugal
N. Jb. Miner. Abh. 188/3, 297 – 316 Fast Track Article PublishedStuttgart, Augustonline November2011 2011 Geochemistry of granitic aplite-pegmatite veins and sills and their minerals from the Sabugal area, central Portugal Ana M. R. Neiva, Paulo B. Silva and João M. F. Ramos With 19 fi gures and 12 tables Abstract: Granitic beryl-columbite-phosphate subtype aplite-pegmatite veins and sills from the Sabugal area intruded a biotite > muscovite granite which is related to another two-mica granite. Variation diagrams of major and trace elements of whole rocks δ18 show fractionation trends. REE patterns and O of whole rocks, BaO and P2O5 contents of K-feldspar, anorthite and P2O5 contents of plagioclase, major element and Li contents of muscovite and lithian muscovite support this series. Least squares analysis of ma- jor elements indicate that the biotite > muscovite granite and aplite-pegmatite veins and sills are derived from the earlier two-mica granite magma by fractional crystallization of quartz, plagioclase, K-feldspar, biotite and ilmenite. Modelling of trace elements shows that magmatic fl uxes and fl uids controlled the Rb, Sr and Ba contents of aplite-pegmatites,Paper probably also lithium micas (zin- nwaldite, polylithionite and rare lepidolite), cassiterite, columbite-tantalite, fl uorapatite and triplite. In aplite-pegmatites, lithian muscovite replaces primary muscovite and late lithium micas replace lithian muscovite. Complexely zoned columbite crystals are chemically characterized and attributed to disequilibrium conditions. Relations of granites and aplite-pegmatites and pegmatites from other Portuguese and Spanish areas are compared. The granitic aplite-pegmatites from Sabugal are moderately fractionated and the granitic complex type aplite-pegmatites from Gonçalo are the richest in Li and Sn, derived from a higher degree of frac- tional crystallization and fl uxes and fl uids control the Ba and Rb behaviours and Li, Sn, F and Ta concentrations. -
Decrepitation Characteristics of Igneous
DECREPITATIONCHARACTERISTICS OF IGNEOUSROCKS F. G. SMITH Unfuersi,tyof Toronto, Toronto, Canada Ansrnect ._lecrepitation during heating of igneous intrusive rocks is complex, but one stage (D2) appears to be due to misfit of solid inclusions. This stage begins at 6rb + g0'-b in simple granite pegmatite and aplite, Z0S * 80" C in ganiie, Z6E + 50" C in granodiorite and quartz norite, and 1010 + 60o C in gabbro and related rocks. The p2-sQS! of pegmatite and aplite in an area of migmatitic gneiss, with no exposed batholiths, starts at a lower temperature than the corresponding stage of decrepitation of the country gneiss. Introd,wction The rationale of decrepitation due to misfit of solid inclusions in minerals, when heated above the temperature of crystallization, was outlined previously (smith, L952a).A stage of decrepitation of several types of garnet was interpreted to be due to solid inclusions, becausethe frequency of decrepitation was found to be directly related to the abundanceof solid inclusions (smith, lg52b). A similar stage of decrepi- tation of high grade metamorphic rocks was found (Smith, lgb8). The measuredtemperatures of the beginning of this stage of decrepitation of metamorphic minerals are internally consistent, and are not at variance with the small amount of synthetic data. As a further test of the rationale. a few rocks representing several igneous rock clans were heated in the decrepitation apparatus. The results can be interpreted in an analogous manner to give the temperature of crystallization of the constituent minerals. These data, which should be considered as only tentative becauseof the small number in each clan tested, are given below, uncor- rected for the effect of pressiure. -
Key to Rocks & Minerals Collections
STATE OF MICHIGAN MINERALS DEPARTMENT OF NATURAL RESOURCES GEOLOGICAL SURVEY DIVISION A mineral is a rock substance occurring in nature that has a definite chemical composition, crystal form, and KEY TO ROCKS & MINERALS COLLECTIONS other distinct physical properties. A few of the minerals, such as gold and silver, occur as "free" elements, but by most minerals are chemical combinations of two or Harry O. Sorensen several elements just as plants and animals are Reprinted 1968 chemical combinations. Nearly all of the 90 or more Lansing, Michigan known elements are found in the earth's crust, but only 8 are present in proportions greater than one percent. In order of abundance the 8 most important elements Contents are: INTRODUCTION............................................................... 1 Percent composition Element Symbol MINERALS........................................................................ 1 of the earth’s crust ROCKS ............................................................................. 1 Oxygen O 46.46 IGNEOUS ROCKS ........................................................ 2 Silicon Si 27.61 SEDIMENTARY ROCKS............................................... 2 Aluminum Al 8.07 METAMORPHIC ROCKS.............................................. 2 Iron Fe 5.06 IDENTIFICATION ............................................................. 2 Calcium Ca 3.64 COLOR AND STREAK.................................................. 2 Sodium Na 2.75 LUSTER......................................................................... 2 Potassium -
Petrographic Study of a Quartz Diorite Stock Near Superior, Pinal County, Arizona
Petrographic study of a quartz diorite stock near Superior, Pinal County, Arizona Item Type text; Thesis-Reproduction (electronic); maps Authors Puckett, James Carl, 1940- Publisher The University of Arizona. Rights Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Download date 23/09/2021 23:40:37 Link to Item http://hdl.handle.net/10150/554062 PETROGRAPHIC STUDY OF A QUARTZ DIORITE STOCK NEAR SUPERIOR, PINAL COUNTY, ARIZONA by James Carl Puckett, Jr. A Thesis Submitted to the Faculty of the DEPARTMENT OF GEOLOGY In Partial Fulfillment of the Requirements For the Degree of MASTER OF SCIENCE In the Graduate College THE UNIVERSITY OF ARIZONA 1 9 7 0 STATEMENT BY AUTHOR This thesis has been submitted in partial fulfillment of re quirements for an advanced degree at The University of Arizona and is deposited in the University Library to be made available to borrowers under rules of the Library. Brief quotations from this thesis are allowable without special permission, provided that accurate acknowledgment of source is made. Requests for permission for extended quotation from or reproduction of this manuscript in whole or in part may be granted by the head of the major department or the Dean of the Graduate College when in his judg ment the proposed use of the material is in the interests of scholar ship. In all other instances, however, permission must be obtained from the author. -
Full-Text PDF (Final Published Version)
Pritchard, M. E., de Silva, S. L., Michelfelder, G., Zandt, G., McNutt, S. R., Gottsmann, J., West, M. E., Blundy, J., Christensen, D. H., Finnegan, N. J., Minaya, E., Sparks, R. S. J., Sunagua, M., Unsworth, M. J., Alvizuri, C., Comeau, M. J., del Potro, R., Díaz, D., Diez, M., ... Ward, K. M. (2018). Synthesis: PLUTONS: Investigating the relationship between pluton growth and volcanism in the Central Andes. Geosphere, 14(3), 954-982. https://doi.org/10.1130/GES01578.1 Publisher's PDF, also known as Version of record License (if available): CC BY-NC Link to published version (if available): 10.1130/GES01578.1 Link to publication record in Explore Bristol Research PDF-document This is the final published version of the article (version of record). It first appeared online via Geo Science World at https://doi.org/10.1130/GES01578.1 . Please refer to any applicable terms of use of the publisher. University of Bristol - Explore Bristol Research General rights This document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Full terms of use are available: http://www.bristol.ac.uk/red/research-policy/pure/user-guides/ebr-terms/ Research Paper THEMED ISSUE: PLUTONS: Investigating the Relationship between Pluton Growth and Volcanism in the Central Andes GEOSPHERE Synthesis: PLUTONS: Investigating the relationship between pluton growth and volcanism in the Central Andes GEOSPHERE; v. 14, no. 3 M.E. Pritchard1,2, S.L. de Silva3, G. Michelfelder4, G. Zandt5, S.R. McNutt6, J. Gottsmann2, M.E. West7, J. Blundy2, D.H. -
Cllr P Burrows Councillors: K
Minutes of the Seaton Town Council Meeting On Monday 3rd September 2018 Present In the chair: Cllr P Burrows Councillors: K Beer, M Hartnell, D Ledger, S Read, J Rowland, H Sanham, M Shaw and D Squire Officers: Locum Clerk Public: 12 members of the public 99. Apologies for absence The Council received and accepted apologies from Cllr Chadwick Cllr Webster was absent 100. Declarations of Interest Cllr Shaw declared a personal interest as a Councillor with Devon County Council (DCC) Cllr Hartnell declared a personal interest as a Councillor with East Devon District Council (EDDC) Cllr Burrows declared a personal interest as a Councillor with East Devon District Council (EDDC) 101. Minutes The Council RESOLVED to approve the minutes of the Council meeting on 6th August 2018 subject to the minor amendment of: Minute 96, amending the sentence where Cllr Squire introduced the report of the TIC Working Group, replacing the words TIC Working Group with the word Facebook (moved Cllr Sanham; seconded Cllr Rowland) 102. Chairman’s Report Discussion took place around: Cllr Burrows had been contacted by a few residents who were concerned about reports they had heard that the Jurassic Mule bus would not operate next year. Cllr Burrows said that if the owners of the bus wished to contact the town council to talk about the future of the bus he would be happy to speak with them. Cllr Rowland reported the operator had said this would be their last season because of the costs of running the operation. The Council NOTED the Chairman’s Report 103. -
The Thermal Transformation of Datolite, Cabsio4(OH), to Boron.Melilite
MINERALOGICAL MAGAZINE, JUNE I973, VOL. 39, PP. 158-75 The thermal transformation of datolite, CaBSiO4(OH), to boron.melilite J. TARNEY, A. W. NICOL, and GISELLE F. MARRINER Departments of Geology, Minerals Engineering, and Physics, respectively, University of Birmingham SUMMARY. A kinetic and X-ray study of the dehydroxylation of datolite, CaBSiO4(OH), has shown that the decomposition occurs very rapidly above 7o0 ~ in air, with an activation energy for the reaction of the order of 200 kcal mole-1. The transformation is topotactic, the dehydroxylated phase being tetragonal with a 7" 14/~t, c 4-82 fit, and particularly well formed even at the lowest temperatures of decomposition. Single-crystal studies have shown that two orientations of the new phase exist and that the original a of datolite becomes the unique axis of the tetragonal phase while the tetragonal a axes are oriented either parallel to or at 45 ~ to the b and c axes of datolite. The new phase appears to be a boron-containing analogue of the melilite structure, composition Ca2SiB~OT, but is metastable. The basic sheet structure is preserved during the transformation but a reorganization of the tetra- hedral layer from the 4- and 8-membered rings of datolite to the 5-membered rings of the new phase is involved, together with effective removal of protons and some silicon. The transformation can be explained in terms of an inhomogeneous reaction mechanism involving migration of calcium and boron into the new phase domains and counter-migration of silicon and protons, but with only minor readjustment of oxygens. -
What's on in September
What’s On in September 1st/Sun The Maesteg Gleemen Welsh Choir at Sidholme Music Room, Sidmouth 3.30-4.30pm 2nd/Mon Ottery St Mary Carers Support Group meet at The Station 10.30am-12noon with Adam from the Health and Well Being Team info from Julie Austin, Devon Carers, 03456 434435 2nd/Mon Coleridge Surgery “Knit & Natter” Group 1pm - 2pm 2nd/Mon “Ottery Inner Wheel” meet at Tumbling Weir Hotel 7.15pm for info [email protected] 3rd/Tues “Over 50s Indoor Curling Club” meet in United Reformed Church Hall 2.15-4.15pm 5th/Thurs “Ottery Woolgathering” Craft Club meet in The Library 10.30am to 12.30pm 6th/Fri “Station Film Club” at Ottery Station 2pm “Beautiful Boy” 6th/Fri “OVAS” meet in The Institute 7.30pm Landscape in Mixed Media with Linda White 7th/Sat “B Sharp Pop Up Choir” workshop in The Institute 2.30pm 9th/Mon “Ottery WI” meet in the Feoffee Room 7.30pm “Antique Sales” with David and Julian from Otter Antiques 11th/Weds “Otter Vale NWR” meet. Visit to RAMM (Museum) contact Jill 01404 813741 13th/Fri “Ottregians Over 60s Club” Bingo in The Feoffee Room 2.30pm 17th/Tues “Over 50s Indoor Curling Club” meet in United Reformed Church Hall 2.15-4.15pm 17th/Tues “Ottery Heritage Society” meet in The Institute 7.30pm “The National Trust on Dartmoor – A Grand Tour” with Paula Clarke 18th/Weds “Ottery Flower Club” meet at Ottery Primary School 7.30pm Demonstration “Autumn Inspirations” by Nick Hele 21st/Sat “World’s Biggest Coffee Morning” for MacMillan Cancer Support at The Institute 10am -2pm 22nd/Sun 3rd “King and Queen of The Mountain” at Chineway Hill in the morning 22nd/Sun Cycling Event at Land of Canaan in the afternoon SEPT OSM Future Cycling Champion after school hours 27th/Fri “Ottregians Over 60s Club” Bingo in The Feoffee Room 2.30pm 28th/Sat Ottery Community Market at The Institute 9.30am to 12.30pm 29th/Sun “Ottery Royal British Legion” Quiz Eve at the Lamb and Flag 7.30pm for 8pm start 30th/Mon Coleridge Surgery “Knit & Natter” Group 1pm -2pm . -
June 2017 Vol. 48 No.6 50P FOCUS MAGAZINE INFORMATION Chairman Michael Ayre, Ratcliffe Farm, Raddon
June 2017 Vol. 48 No.6 50p FOCUS MAGAZINE INFORMATION Chairman Michael Ayre, Ratcliffe Farm, Raddon. Secretary Geoff Bulley, 17 Broadlands, Thorverton. Advertisements Secretary Maggie Dunlop, Kibby Yew, School Lane, Thorverton. Tel.(01392) 861185 Treasurer Bob Swaffield, Schiehallion, School Lane, Thorverton. Tel. (01392) 860309 Editor Neville Lane, Stable House, 2 The Glebe, Thorverton. Tel. (01392) 861062 Email: [email protected] Back issues (courtesy of Rob Purvis): thorvertonfocus.wordpress.com Assistant editors Eileen Mason and Fiona Harrison Printers Barrie Phillips and Peter Mason At the present time Focus is produced each month except one (August) and is assembled by volunteers on the last working day of the month. The Editor welcomes interesting news items, reports etc. for publication. Items for inclusion in Focus should be accompanied by the name of the originator, which may be withheld from print if requested. The aims of Focus are: To produce a non-political monthly magazine serving the people of the parish of Thorverton, providing them with information on activities in the parish; For the magazine to be one that villagers are proud of; To provide a window for those outside Thorverton to see what the village has to offer; To promote local businesses through advertising; and To run at a small annual profit, but with surplus funds put to support village organisations for the benefit of Thorverton residents. Items for publication, adverts, changes to adverts, Diary entries, changes to Thorverton Information lists should be sent to the Editor, preferably as plain text in an email, or as a Word doc file or a pdf file email attachment (to [email protected]) by the 20th of the month prior to publication please. -
University of Nevada, Reno Igneous and Hydrothermal Geology of The
University of Nevada, Reno Igneous and Hydrothermal Geology of the Central Cherry Creek Range, White Pine County, Nevada A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Geology by David J. Freedman Dr. Michael W. Ressel, Thesis Advisor May, 2018 THE GRADUATE SCHOOL We recommend that the thesis prepared under our supervision by DAVID JOSEPH FREEDMAN entitled Igneous and Hydrothermal Geology of the Central Cherry Creek Range, White Pine County, Nevada be accepted in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Michael W. Ressel, PhD, Advisor John L. Muntean, PhD, Committee Member Douglas P. Boyle, PhD, Graduate School Representative David W. Zeh, PhD, Dean, Graduate School May, 2018 i Abstract The central Cherry Creek Range exposes a nearly intact, 8-km thick crustal section of Precambrian through Eocene rocks in a west-dipping homocline. Similar tilts between Eocene volcanic rocks and underlying Paleozoic carbonates demonstrate that tilting and exhumation largely occurred during post-Eocene extensional faulting, thus allowing for relatively simple paleo-depth determinations of Eocene intrusions and mineral deposits. The study area is cored by the Cherry Creek quartz monzonite pluton (35 km2 exposure; ~132 km2 coincident magnetic anomaly), which was emplaced into Precambrian and Cambrian meta-sedimentary strata between 37.9-36.2 Ma and is exposed along the east side of the range. The pluton and overlying Paleozoic strata are cut by abundant 35.9-35.1 Ma porphyritic silicic dikes. A range of polymetallic mineralization styles are hosted by the intrusive rocks along two deeply-penetrating, high-angle faults and their intersections with favorable Paleozoic units. -
Offers in the Region of £55,000 for Sale by Private Treaty
NEWTON ABBOT ~ ASHBURTON ~ TOTNES ~ CHAGFORD ~ ANTIQUES SALEROOM, ASHBURTON Draft details subject to vendor’s approval 10/01/2019 2.77 Acres of Equestrian land with planning permission for a stable block and yard at Lower Bowdley, Druid, Ashburton, Devon, TQ13 7HR Offers in the Region of £55,000 For Sale by Private Treaty Contact Newton Abbot Rural Department: Rendells, 13 Market Street, Newton Abbot, Devon TQ12 2RL Tel. 01626 353881 Email: [email protected] Equestrian Land and Planning Permission for Stables at Lower Bowdley, Ashburton, Devon, TQ13 7HR 10/01/2019 Situation: Situated of a the B3387 lane to Haytor 2 miles north west of the town of Ashburton within Dartmoor National Park surrounded by similar fields, woodland and other equestrian properties. Description: A gently sloping free draining field of permanent grassland with excellent views out towards rolling countryside and Hennock with the benefit of a hard core entrance and track, good stock fencing and Devon banks containing mixed native hedgerow species. A great opportunity to build a new equestrian holding with stable block suitable for two horses and hard standing yard area. Tenure: The property is freehold and offered for sale with vacant possession. Plan: The plan attached has been prepared from Promap ordnance survey plans but must be treated as a guide. Planning Consent for Stable Block Was granted by Dartmoor National Park under application number 0411/17 permission being granted on the 9th of October 2017. A copy of the permission and the plan is included in the details. The site is at the West corner of SX (7471).