 | | Report (volume) | | Director Bulletin 839 GEOLOGY OF THE BOSTON AREA MASSACHUSETTS BY LAURENCE LAFORGE UNITED STATES GOVERNMENT...east-west dikes and sills.__.___---_____-_______ Medford diabase dike._________________________________...geology of the Boston and Boston Bay quadrangles, Massachusetts--____-.-_____ In pocket. 2. Map showing surficial...Disintegrating diabase of the great Medford dike in the former quarry at Pine Hill, Medford- _ 42 10. Squantum tillite...-----------81 GEOLOGY OF THE BOSTON AEEA, MASSACHUSETTS By LAURENCE LAFORGE INTRODUCTION* POSITION AND |  | | Journal (article/letter/editorial) | | large dikes as exemplified by the Medford Dike in eastern Massachusetts. Associated with the large dike...intrusion of the large dike. This suggests that the Medford Dike did not intrude the country rock by pushing...field relations of one of the larger dikes, the Medford Dike (described below), shows conclusively that...large scale. GENERAL RELATIONS OF THE MEDFORD DIKE The Medford Dike occurs in eight different outcrops...A careful study of the field relations of the Medford Dike was made at the most northerly of the outcrops |  | | Book | | MASSACHUSETTS MINERALAND FOSSIL LOCALITIES Compiled by Peter P. Gleba 'I!~·· . \. i r,'"--""'4' I...publication. Peter P. Gleba December 2008 Quincy, Massachusetts Member Boston Mineral Club Reprinted by permission...is some of the most valuable real estate in Massachusetts. Calculating it another way, [Peter Gleba] said...is some of the most valuable real estate in Massachusetts. It has access, it has convenience, it has exposure...window of his car as he passed west of the Massachusetts state lottery offices and saw a spreading rust |  | | Report (issue) | | Geology of Massachusetts E. Stratigraphy of the Milford-Dedharn Zone, Eastern Massachusetts: An Avalonian... Stratigraphy of the Nashoba Zone, Eastern Massachusetts: An Enigmatic Terrane G. Stratigraphy of the...Belt, Central Massachusetts H. Structural and Metamorphic History of Eastern Massachusetts I. Intrusive...Intrusive Rocks of Eastern Massachusetts J. Radiometric Ages of Rocks in Massachusetts L.S. GEOLOGICAL SURVEY...PROFESSIONAL PAPER 1366-E-J The Bedrock Geology of Massachusetts NORMAN L. HATCH, JR., Editor E. Stratigraphy |  | | Book (edition) | | GUIDE (Cross-seaion at right) CHRYSOBERYL EPIDOTE PERIDOT SPHALERITE CORUNDUM FELDSPAR ^ PHENACITE...mine, Racooche Valley, White Co. 1866 Vs White County Daniel Light form, % mi. NE Less than 1887 ...Alabama has yielded a 4i%4 carat diamond from Shelby County, 30 miles south of Birmingham, found about 1900...Siding in St. Clair County, 20 miles northeast of Bir- mingham. One found in Lee County in 1901 weighs 4^...have a cornfield at Pounding Mill, Tazewell County, Va. A 3 carat stone, bought by a Knoxville |  | | Report (issue) | | Geology and Geophysics Boston College Weston, Massachusetts 02167 Geoffrey W. Smith Department of Geological...portion of the Boston Bay Group at Nantasket, Massachusetts. Brunton compass is for scale and also points...Mattapan Volcanic Complex, greater Boston, Massachusetts . 85 Margaret D. Thompson and O. Don Hermes...valon Boston terrane, Massachusetts . 133 A valon zones, eastern Massachusetts Martin E. Ross iii ...suggests that the mid(?)- to late Proterozoic Middlesex Fells Volcanics consist of alkalic to transitional |  | | Journal (issue) | | . For The Mineral Collector. MINERALS OF MASSACHUSETTS . By J. C. RAND. PART 1. PRELIMINARY REMARKS...study of mineralogy, and of the mineralogy of Massachusetts in par ticular, then the purpose of the writer...articles in describing the mineral localities of Massachusetts will not have been in vain. With such good facilities...knowledge of the min erals and localities of Massachusetts has been obtained largely by frequent trips...assort ment of minerals are to be found here in Massachusetts. Our early mineralogists spent much of their |  | | Journal (article/letter/editorial) | | 2. Chemical variation across a contact between Medford diabase dike with rhyolite 555 a trap dike and...hybridized gabbro-diorite at Little Nahant, Massachusetts. The contact is wavy in detail with apopheses...the Old Colony Crushed Stone Quarry, Quincy, Massachusetts is represented in Figure 3. The zenolith is...The alteration products are chlorite, sericite, epidote, and calcite. The Blue Hills porphyry was not examined...the southeast shore of Spot Pond, Winchester, Massachusetts. The additions of alumina, lime, and soda to |  | | Journal (article/letter/editorial) | | BULL. GEOL. SOC. AM. T H E GREAT DIKE IN MEDFORD, M ASSACHUSETTS VO L. 7, 1895, PL. 16 BULLETIN OF...DISINTEGRATION AND DECOMPOSITION OF DIABASE AT MEDFORD, MASSACHUSETTS BY GEORGE P . M ERRILL (Presented before...continuously from the Mystic river, in Med ford, Massachusetts, northward toward Spot pond, for nearly two...and presumably but a continuation of the one at Medford. In point of age the dike is one of the youngest...Powder House hill, in Charleston, in the center of Medford, in Reading and in Woburn the greenstone is most |  | | Report (issue) | | Resources Wilderness Study the Soda Mountain , Jackson County, Oregon U.S. GEOLOGICAL SURVEY BULLETIN 1 744-C...the Soda Mountain Wilderness Study Area, Jackson County, Oregon By WILLIAM J. PICKTHORN, RICHARD J. GOLDFARB...the Soda Mountain Wilderness study areas, Jackson County, Oregon / by William J. Pickthorn ... [et al.]...Mountain Wilderness Study Area (OR-011-017), Jackson County, Oregon. CONTENTS Summary Cl Abstract Cl Character...of Soda Mountain Wilderness Study Area, Jackson County, Oregon C2 2. Map showing mineral resource potential |  | | Report (issue) | | Radlometrlc Age Data Bank (RADB) of Rocks from Massachusetts by Robert E. Zartman and Richard F. Marvin...Radlometrlc Age Data Bank (RADB) of Rocks from Massachusetts Robert E. Zartman and Richard F. Marvln This...contains the records of radlometrlc ages for Massachusetts from the Radlometrlc Age Data Bank of the U...portrayed on a new bedrock geologic map of Massachusetts (Zen, 1983). The compilation Is believed to...they appear on the Bedrock Geologic Map of Massachusetts (Zen, 1983). Steiger, R. H., and Jager, E. |  | | Report (volume) | | OTIS SMITH, Director Bulletin 597 GEOLOGY OF MASSACHUSETTS AND RHODE ISLAND BY B. K. EMERSON WASHINGTON....................................... Worcester County, Mass....................................... Westboro...member........................... Northeastern Massachusetts..................................... General..................................... Western Massachusetts...............................................district............................. Eastern Massachusetts............................................ |  | | Journal (article/letter/editorial) | | hasbeenmapped;theseincludethe Roseburg, Riddle,ButteFalls, Medford,and GrantsPassquadrangles. In addition, U.S. Geol...described by F. G. Wells,2 for the Granœs Passand Medford quadrangles.The olderschistsoccupy40 or 50 squaremilesalongthe...Pass and partly in the southwestern corner of the Medford quadrangles.Becauseof severemetamorphism they 2... Indus., 1940. Preliminary geologicmap of the Medford Quadrangle,Oregon. Oregon Dept. Geol. and Min....considerable part of the Grants Pass,Riddle and Medford quadrangles.The metavolcanics are pale greento |  | | Journal (article/letter/editorial) | | 12 Baylis Mews, Amyand Park Road, Twickenham, Middlesex TW1 3HQ, United Kingdom, Email: info@minersoc...Wiley, 101 Station Landing, Suite 300, Medford MA 02155, USA, Email: cs-journals@wiley.com, Phone: 781-388-8598...Petroleum Geologists, 1444 S. Boulder, Tulsa, OK 74119, USA, Email: bulletinsubscription@aapg.org, Phone: 918-584-2555...Wiley & Sons Inc 350 Main Street, Malden MA 02148, USA, Email: cs-journals@wiley.com, Phone: 781-388-8598...Wiley, 101 Station Landing, Suite 300, Medford MA 02155, USA, Email: cs-journals@wiley.com, Phone: 781-388-8598 |  | | Book | | Department of Geology Boston University Boston, Massachusetts 02215 to; PREFACE In 1966, John Rodgers...Davis in the Connecticut Valley of western Massachusetts, and gradually extended itself. oo over New...Brown University The Foxboro Co., Foxborough, Massachusetts Geography, University of Toronto U. S. G, S...Boston State College Botany, University of Massachusetts, Amherst Marine Sciences, Virginia Institute...Marine Sciences University of Lowell, Lowell, Massachusetts Geology, University of California, Los Angeles |  | | Journal (issue) | | Hypersthene 5.5 Magnetite 5.2 Pink garnet 3.9 Epidote 3.7 Biotite 1.3 Minor constituents 3.3 (glaucophane...Clinopyroxenes Hypersthene 4.8 Clear garnet 4.7 Epidote 2.6 Clinozoisite 1.5 Zircon 1.3 Pink garnet 1.1...hornblende, magnetite, garnet, hypersthene, and epidote. Table 2 lists the percentages of all heavy mineral...Holley in the Sweet Home Petrified forest, linn County, Oregon: Ore Bin, v. 30, no. 4, p. 57-76. Panshin...era when mining was a key industry in Josephine County, it became a natural for him to enter the mining |  | | Report (issue) | | Vancouver The Dalles Salem Bend Roseburg Crescent Medford Klamath Falls Weed Alturas Redding Susanville ...white. Biotite is absent. Veinlets of actinolite, epidote, and hematite have hard, white alteration haloes...alteration plagioclase albite or oligoclase * epidote or calcite biotite sericite * chlorite » rutile...greenish gray. Veinlets of pyrite or chlorite and epidote lack prominent alteration haloes, chlorite * rutile...ECI >R CIL AU( 5L USA Z USA Z USA Z USr>[M CNEJC PLP N PERU PLP N CIN \ PLP ^ CNTE C USA Z CNE c CIL1 ^ |  | | Journal (issue) | | five to six million years. Geophysical studies in Medford 2° Quadrangle (CUSMAP)-R. J. Blakely (MP): Gravity...Gravity and aeromagnetic studies in the Medford 2 0 Quadrangle. Thermal infrared studies of Cascade volcanoes-J...special emphasis on the age of associated faulting. Medford-Coos Bay Quadrangles (CUSMAP)-J. G. Smith (MP):...multidisciplinary landresource analysis folio of Medford 2 0 Quadrangle, with primary emphasis on the evaluation...plate tectonic models. Geochemical exploration of Medford 2 0 Quadrangle (CUSMAP)-D. J. Grimes (D): Collection |  | | Report (volume) | | .......................................... Massachusetts...............:...............................See Bauxite and Halloysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton;...following localities : Bibb County, Pratts Ferry; Calhoun County, near Tampa; Clay County, T. 20 S., R. 7 E.;...; Jefferson County, at Ely ton; Lee County, at Chewacla lime works"; St. Clair County, at Greensport; |  | | Journal (article/letter/editorial) | | lbs. or more assorted at 75c per lb. F. O. B. Medford, Oregon. Beautiful polished slabs 4 x 4 and up...Minn.), new permanent address. 223 N. Riverside, Medford Oregon. NEW ENGLAND MINERALS-WHITE BARite with...% to ~~ in. in Chlorite; follated green Talc; Epidote: Rhodonite; Lepidollte; Siderite. and many others8 |  | | Journal (issue) | | museum quality.” (Szenics, 1967) Spruce Peak, King County, Washington, 1977 Beautiful pyrite and quartz specimens...and FLECK, G. (1980) The Grey Horse mine, Pinal County, Arizona. Mineralogical Record, 11 (4), 231–232...and HAWES, W. (1978) Quartz and pyrite from King County, Washington. Mineralogical Record, 9 (6), 352–353...from the Spinelli prospect, Glastonbury, Hartford County, Connecticut. Collected December 21, 2008 with...#1 Mica mine (Swanson mine), East Hampton, Middlesex County, Connecticut. Collected December, 1978. I |  | | Book | | Co. Hematite CALERA, Shelby Co. Wavkllite CLAY COUNTY, Sec. 24. T. 19 S R., 7 E. STATUARY, Coosa Co...Co., (W. border of* Marble Crystalline TALLADEGA COUNTY Marble, (crystalline) VALLEY HEAD, DeKalb Co. Hematite...Feldspar HISSOP, Coosa Co., (near) Beryl JACKSON COUNTY Hematite KENNEDYS, Clay Co., (near) Magnetite MILLERVILLE...DELANEY, Madison Co. Quartz, (clear crystals) GARLAND COUNTY Quartz Crystals HOT SPRINGS, Garland Co. Malachite...Malachite HOT SPRINGS DISTRICT Quartz Xls LAWRENCE COUNTY Pearls LITTLE ROCK Quartz Crystals MAGNET COVE, |  | | Report (issue) | | particular he wishes to thank Mr. C. C. Clark, of Medford; Mr. Harry Ear., of atkins; r. Carl Vanstrand,...corner of the Grants Pass quadrangle , in Jackson County, Oreg., adjoining the California line. It is reached...reached by a good road from Jacksonville and Medford, respectively 25 and 30 miles to the northeast. The...Salmon hornblende s chi s t (igneous) of Trinity County , . Calif . Cons id.erable doubt i s ente rtained...dark green schist composed largely of quart z, epidote , and chlo r it e . Rock of this tYPe occur s throughout |  | | Journal (article/letter/editorial) | | structure. Aside from these minerals a primary epidote, in small granules and at times quite perfectly...the remaining granules of quartz, feldspar and epidote beautifully fresh and with sharp, angular borders...particles of quartz, fewer feldspars, an occasional epidote and a considerable sprinkling of almost amorphous...come over with the silt. The presence of this epidote also explains in part the high percentage of lime...illustrated in a large dike of diabase at Medford, Massachusetts, the petrographic nature of which has been |  | | Journal (issue) | | Geology that were affected by changes or corrections. County, date Baker H_, H_, 1991 1991 1991 Jefferson ...continues but is not shown National Forest Boundary County line * Field trip stop : To : Rogue River...Jurassic-Cretaceous Granife § Jurassic Gabbro MEDFORD [J Jurassic Belt Rocks [TIl Jurassic(?) Amphibolite...schists are dominantly mafic, chlorite-actinolite-epidote amphibolites. Locally, there are interlayered quartzmica...e-feldspars-graphite, and chlorite-actinolite-epidote-plagioclase-oxides ± quartz define the Slee cleavage |
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