 | | Report (volume) | | 704 GEOLOGY OF THE IGNEOUS ROCKS OF ESSEX COUNTY, MASSACHUSETTS BY CHARLES H. CLAPP WASHINGTON GOVERNMENT....... 9 9 9 10 11 11 11 15 j ( Geology of Essex County.................................................. 26; . . 3 4 CONTENTS. Geology of Essex County Continued. Igneous rocks Continued. Subjacent........................... Gabbro and diabase at Nahant............................. Lithologic character........................... Diabase and gabbro of Nahant........................... 100 100 Felsic dikes |  | | Journal (article/letter/editorial) | | mineralogy of the aureole of the Nahant Gabbro at East Point, Nahant, Mass., USA P. K. VERMA Department of...The Lower Cambrian Weymouth Formation at Nahant, Massachusetts, consisting of interbedded pelitic and calcareous...calcareous rocks, was intruded by the Nahant Gabbro. The predominant metapelitic mineral assemblage of...physicochemical conditions of the formation of the Nahant hornfelses,the ferric mole fractions of coexisting...of Boston. East Point, the easternmost part of Nahant, consists of the metasedimentary rocks of the Weymouth |  | | Journal (article/letter/editorial) | | THE PETROGRAPHICAL PROVINCE OF ESSEX COUNTY, MASS. II term essexite was first introduced by Sears Essexite...erects the essexite mineral list to include olivine apatite, into a group of igneous rocks of the same order...alkali, and especially a soda-rich, magma. In Essex county they are confined to the immediate vicinity...prominent. Specimens from one locality 'SEARS, Bull. Essex Inst. Vol., XXIII, 1891. Elem. d. Gesteinslehre...through the mass in PETROGRAPHICAL PROVINVCE OF ESSEX COUNTY 55 a highly irregular grains and prisms, and |  | | Journal (article/letter/editorial) | | 1899 THE PETROGRAPHICAL PROVINCE COUNTY, MASS. III OF ESSEX ROCKS OCCURRINGIN DIKES THE rocks described...an approximate idea of the intrusive rocks of Essex county. GRANITIC DIKES of this rock are confined...specimens carry titanite and magnetite, while apatite is seldom seen. These aplites are occasionally... 536, 1893. PETROGRAPHICAL PROVINCE OF ESSEX COUNTY 107 of Arran it is easy to explain this by...are seen here and there and minute needles of apatite are fairly common. For analysis the freshest specimen |  | | Report (volume) | | Director Bulletin 839 GEOLOGY OF THE BOSTON AREA MASSACHUSETTS BY LAURENCE LAFORGE UNITED STATES GOVERNMENT...geology of the Boston and Boston Bay quadrangles, Massachusetts--____-.-_____ In pocket. 2. Map showing surficial...Weymouth formation in the cliff at East Point, Nahant; B, Columnar jointing in rhyolite porphyry._______________...-----------81 GEOLOGY OF THE BOSTON AEEA, MASSACHUSETTS By LAURENCE LAFORGE INTRODUCTION* POSITION AND...30' and extends westward from the shore of Massachusetts Bay to meridian 71° 15', comprises the Boston |  | | Report (issue) | | Geology of the land area of the Boston 2° sheet, Massachusetts, Connecticut, Rhode Island and 10- New Hampshire... 16 17 18 U. S. Geological Survey Boston, Massachusetts 19 ,U. S. Geological Survey* OPEN FILE REPORT...GEOLOGY OF THE LAND AREA OF THE BOSTON 2° SHEET, MASSACHUSETTS, CONNECTICUT, RHODE ISLAND AND NEW HAMPSHIRE...muscovite; accessory minerals are 13 magnetite, apatite, garnet, fluorite, sphene, and zircon; secondary...Milford Granite from the Milford quadrangle, Massachusetts, yielded 19 a 620 + 15 my,Precambrian,zircon |  | | 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 | | 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 (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) | | represented by the New Hampshire and eastern Massachusetts occurrences, differentiated igneous rocks occupy...Correlation with the alkalic rocks of eastern Massachusetts-to be discussed in the following section-had...be time correlatives of those from eastern Massachusetts (Toulmin 1961). Nevertheless, the different...plate motion. Eastern Massachusetts The alkalic igneous rocks of eastern Massachusetts and northeastern Rhode...alkalic rocks of New Hampshire, those of eastern Massachusetts are definitely posttectonic with respect to |  | | 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 (issue) | | THE LYM AND MARBLEHEAD SOUTH QUADRANGLES, MASSACHUSETTS by Kenneth G. Bell 1977 C-t^V«t>i^*-^'-;i'-...rocks Dedham Granodiorite Salem gabbro-diorite Nahant gabbro Olivine gabbro Quartz diorite at Little...occasional grains of hornblende, and accessory minute apatite and zircon crystals; the color of . reddish and...tltaniferous magnetite granules are most abundant. Apatite may or may not be present in a particular specimen... 1-2 percent opaque s minerals, and accessory apatite and zircon. Quartz occurs as scattered grains as |  | | Report (issue) | | and F. C. Michel 5 12 Folding of the Nahant gabbro, Massachusetts, by C. A. Kaye Relation of laccolithic...northeastern Massachusetts, by R. 0. Castle Gneissic rocks in the South Groveland quadrangle, Essex County, Mass...use on the low flow of streams in Rappahannock County, Va., by H. C. Riggs Seasonal erasure of thermal...MILLIGALS these valleys, Gem Valley in Caribou County, Idaho, (fig. 2) was surveyed in more detail (Mabey...Gravity and magnetic anomalies in Gem Valley, Caribou County, Idaho: Art. 140 in U.S. Geol. Survey Prof. Paper |  | | Journal (article/letter/editorial) | | amounts (2-3% by volume). Accessory minerals include apatite, ilmenite and notably magnetite and hematite....amounts, while apatite, ilrnenite, m~tgnetite and notably hematite are accesso~ phases. The apatite is found...garnet-anorthite and sence of CI in scapolite, hornblende and apatite, and the occurrence of hydrous phases in the hornblende-pyroxene...Cl-bearing minerals (scapol~te, dashkesanite and chlor-apatite) and of ferric iron-rich phases including hematite...Diopside and actinolite from skarn, Clearwater County, Idaho. Am. Mineral. 56, 234-239. Hietanen, A. |  | | Journal (article/letter/editorial) | | halite, trona, 34 I Sfibren-kalaalan Eskisehir county, deerite, 25i Iraq Sinjar, Mosul, sinjarite, 643...minerals, i0I 5 Uganda Ankole, zincian staurolite, apatite, wavellite, bertossaite, crandallite, goyazite... hibonite, sphene, (clino)zoisite, hercynite, apatite, ilmenite, 995 Malawi Champira dome, banded gneisses...INDEX lO83 Sterling Hill mine, Ogdensburg, Sussex county, New Jersey, sarkinite, 68 I Victory mine, Custer...230; arrojadite, 232 Ward Creek, Cazadero, Sonoma county, California, blueschist-facies amphiboles, 741; |  | | Report (volume) | | New York. Essex Institute, Bulletin, vols. 19,20; vol. 21, Nos. 1-6. Salem, Massachusetts. Forum, 1888... 18, Cambridge, Massachusetts. Memoirs, vol. 16, Nos. 1-3. Cambridge, Massachusetts. Hamilton Association... 1888, pp. 1-68. Baltimore. Massachusetts, Gazetteer of Hampshire County, 1854-'87, by W. B. Gay. Syracuse...a few notes on some rocks associated with the apatite deposits. Canadian Record Science, vol. 3, pp....(February No.), 1890. Petrographic description of apatite-bearing pyroxenites from Portland West, the McLaurian |  | | 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 ...H., 1984, Cambrian rocks of East Point, Nahant, Massachusetts, in Hanson, L. S., ed.. Geology of the coastal |  | | Journal (article/letter/editorial) | | into 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...annular zones of hornblende. Considerable accessory apatite is Downloaded from https://pubs.geoscienceworld...of feldspar and augite with accessory quartz, apatite, and magnetite or ilmenite. Thermal gradients in...the southeast shore of Spot Pond, Winchester, Massachusetts. The additions of alumina, lime, and soda to |  | | Journal (volume) | | H. B. Kiimmel The Petrographical Province of Essex County, Mass. II. Henry - S. Washington ----------------... - --- The Distribution of Loess II. of Essex County, Mass. III. Henry 105 Fossils. B. Granitic...Edgar E. Teller The Petrographical Province of Essex County, S. Mass. Reviews : 247 261 272 Henry...VOLUME v VII PAGE Petrographical Province of Essex County, Mass. Henry S. Washington sion and Conclusions...Nipissing and Temiscaming Map Reviews : and County of Pontiac, Quebec, by Alfred Ernest Barlow (F |  | | Book (edition) | | CongresS; J / in the year 1834, Commonwealth of Massachusetts, Commonwealth in the Clerk's Office of the ...Secretary of the of said i ; District of Massachusetts. by Edward D. Bangs, in the name and District...Excellency, John davis, Esq. Governor of Massachusetts. I HAVE the honor to present you with the second...the 3d of March , 1830, the Legislature of Massachusetts passed a Resolve, authorizing and requesting...Antiquarian Society at Worcester; One copy to the Massachusetts Historical Society One copy to the Boston Society |  | Pisiak, L. K., Canil, D., Lacourse, T., Plouffe, A., Ferbey, T. (2017) Magnetite as an Indicator Mineral in the Exploration of Porphyry Deposits: A Case Study in Till near the Mount Polley Cu-Au Deposit, British Columbia, Canada. Economic Geology, 112 (4) 919-940 doi:10.2113/econgeo.112.4.919 | Journal (article/letter/editorial) | | minerals that occur in these deposits such as apatite, epidote, garnet, jarosite, rutile, and tourmaline...grain with 100-μm-long laser-ablation raster, apatite (Ap) inclusion and minor hematite (Hem) alteration...trellis lamellae, potassium feldspar (Kfs) and apatite inclusions, hematite alteration, and two 30-μm...occurrences to grain size, habit, or chemistry. Apatite is the most common type of inclusion followed by...alteration of ilmenite lamellae in magnetite from the Nahant gabbro, United States, similar to that observed |  | | Journal (article/letter/editorial) | | Missouri, 101 Geological Sciences, Columbia, MO 65211, USA a r t i c l e i n f o Article history: Received...Geology, University of NebraskaOmaha, Omaha, NE 68182, USA. 0301-9268/$ – see front matter © 2008 Elsevier B...Greenstone occurs in association with the graphitic Nahant Schist and the Irish Gulch Slate. Metamorphosed...stratigraphically underlies the metabasalts and the Nahant Schist, gave an 1884 ± 29 Ma U–Pb date (Redden...appears to be a cumulate as it has ∼1.5% normative apatite and 5.5% normative ilmenite, which probably account |  | | Book | | CUMMINGS, BILLIARD, & CO. 1825. DISTRICT OF MASSACHUSETTS, TO WIT. District Clerk's Oflht. BE it remembered..." JNO. W. DAVIS, Clerk of the, District of Massachusetts. CAMBRIDGE -. University Press, Milliard...of Saratoga in Now York, by Doct. John H. Steel. county A (Steel.') 1822." (N. G.) " New Farmer and... which also abounds with Phosphate of Lime, (Apatite,) garnets. Smoky Quartz, amorphous masses is...becoming a coarse kind of steatite. (Hall.) 35 MASSACHUSETTS. ABINGTON. Limpid Quartz, fine crystals in |  | | Report (volume) | | topographer. XXIII. Geology of the Green Mountains in Massachusetts, by Raphael Pinnpolly, J. E. Wo Iff, T. Nelson...meridian of 76° 30', from Tompkins County, New York, to Bradford County, Pennsylvania, by Henry S. Williams...cents. 16. On the Higher Devonian Faunas of Ontario County, New York, by John M. Clarke. 1885. 8°. 86pp. 3...57 pi. Price 25 cents. 38. Poridotite of Elliott County, Kentucky, by J. S. Diller. 1887. 8°. 31pp. 1 pi................................ Hammondville, Essex county, New York ............................ Port |  | | 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 |
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