 | | Journal (article/letter/editorial) | | PETROGRAPHICAL COUNTY, PROVINCE MASS. I. OF ESSEX THE area of igneous rocks in Eastern Massachusetts, especially...especially in Essex county, has been, as the late Geo. H. Williams said, " more discussed than any other...pages are written. I have visited the region of Essex county several times and collected a large number of...sense of deep obligation to Mr. J. H. Sears, of Salem, who has made this region an object of study for...of its chief features. The igneous rocks of Essex county extend along the coast from Lynn to the New |  | | Journal (article/letter/editorial) | | THE PETROGRAPHICAL PROVINCE OF ESSEX COUNTY, MASS. II term essexite was first introduced by Sears Essexite...portion of the nephelineenlarges the syenite magma of Salem Neck.- Rosenbusch2 and and erects the essexite mineral...soda-rich, magma. In Essex county they are confined to the immediate vicinity of Salem Neck, where they occur...prominent. Specimens from one locality 'SEARS, Bull. Essex Inst. Vol., XXIII, 1891. Elem. d. Gesteinslehre... 247, 1896. 53 54 HEINRY S. WASHINGTON on Salem Neck show a marked subschistose or platy structure |  | | 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...............................................group................:............................. Salem gabbro-diorite....................................... 26; . . 3 4 CONTENTS. Geology of Essex County Continued. Igneous rocks Continued. Subjacent................................................. Salem gabbro-diorite. ............................... |  | | 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............................................ |  | | Report (issue) | | ....... 0 ... 232 Correlation. ........... 241 Salem(?) Gabbro-Diorite ........ 242 Assabet Quartz-Diorite...the Andover Granite and surrounding rocks, Massachusetts by Robert Oliver Castle Doctor of Philosophy...South Groveland, and Reading quadrangles of Massachusetts. The Andover Granite and Sharpners Pond Tonalite...over 90 to 95 square miles of northeastern Massachusetts, is typical of many of the two-feldspar granites...approximately 270 square miles of northeastern Massachusetts and about 2 square miles of southeastern New |  | | Catalog/List | | . . . . . . 65 Fasciculite Xis, in schist; Massachusetts . . . . . . . . . . . . . . . . . . . . . 3... . . . . . . . . . . . . . . . . . . . . . 6 ANORTHITE (calcium aluminum silicate) Xline in rock; California.... . ... . .. . . .. . 6 FiM, xline, white; Massachusetts, 1 0 lbs. or more, .2 0 per lb . . . .. .. ... . . . . . 6 FELDSPAR-Sec Albitc, Andesinc, Anorthite, Anortho clasc, Bytownitc, Labradoritc, Microclinc...Michigan . . 13 Aficaceous (schistose) hematite; Massachusetts . . . . . . . . . 6 Massive; Min nesota . . |  | | Catalog/List | | enlarged photograph of a piece of Obsidian, from Lake County, Oregon, which shows a Conchoidal fracture. t...Fibrous; South Dakota Fasciculite Xis in schist; Massachusetts Hornblende Common Hornblende Xls, black, in...00 .60 XI, sections, varnished, in matrix, Massachusetts ......... :. ................ ....... 1 x l½"....40 .25 .60 .60 .26 .25 .60 .35 .80 .60 ANORTHITE (calcium aluminum silicate) Xline in rock; California...DATOLITE (basic calcium boron orthosilicate) Xled; Massachusetts or New Jersey................ .60 1.26 DESCLOIZITE |  | | Journal (article/letter/editorial) | | Petrography of the Elkhorn Mining District, Jefferson County, Montana," U.S. Geol. Surv., Ann. Rept., XXII,...large amount of basic plagioclase (labradorite to anorthite) together with augite and diopside. Hornblendeand...soda-orthoclase (OrAb4) 69.5, basic plagioclase (anorthite phenocrysts 6. , labradorite groundmass 11..9...monzonite and orthoclase-basic-plagioclase(excluding anorthite) rocks under the term calcimonzonite. Calcilatite...phenocrysts in the rocks described by him are anorthite and the groundmass microliteslabradorite. The |  | | Catalog/List | | . . . . . . . . Fasciculite Xis in schist; Massachusetts Hornblende Common Hornblende Cleavable, black;... . . ........ . Xline, white, in dolomite; Massachusetts . .............. Hexagonite Purple :dine mass;...1.50 Xis, in matrix, ends of xis polished; Massachusetts .. ANDESINE (sodium and calcium aluminum silicate)...gl'ay; Nova Scotia ... .... .. ... ..... .... ANORTHITE (calcium aluminum silicate) Xis and xi fragments;... . . . . . . . . . . . . . . . . . . . .35 Massachusetts or New York . . . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | PuuAnahulu,Hawaii........ W. F. Hillebrand CapeAnn,Massachusetts....H. S. Washington Laugendal, Norway................ L. G. Eakins Litchfield, SalemNeck,Massachusetts...H. S. Washington Devil'sTower,SouthDakota...MOLECULES Nephelite............................. Anorthite............................. Acmite Other Oxides...South(Washington) Germany Mountains, Finland trachyte Massachusetts Tower, Hedrum, Yellowstone Litchfield. Tonsenas...Tonsenas, Berkum, Laugendahl, "Phonolite"Salem, "Bostonite" Bearpaw "Litchfieldite" "Lestiwarite" "Pulaskite" |  | | 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 ...1984, Cambrian rocks of East Point, Nahant, Massachusetts, in Hanson, L. S., ed.. Geology of the coastal |  | | 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 |  | | 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. |  | | 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 |  | | Journal (article/letter/editorial) | | Department of Geology and Geography,University of Massachusetts,Amherst, Massachusetts01003, U.S.A- Ansrucr...made. Featuresin metamorphic rocks in central Massachusetts,including schistsbearing strongly zoned garnets...to the different metamorphic zonesin central Massachusetts,and the compositional trajectories are different...(Figs. l5 and 16) in the New Salem retrograde zone, central Massachusetts (see Fig. 2). In this case there... Fig. 15. Variably resorbedgarnetsfrom the New Salem retrogradezone studied by Hollocher (1987). Numbers |  | | Report (volume) | | Counties, Massachusetts By NEWTON E. CHUTE > GEOLOGY OF SELECTED QUADRANGLES IN MASSACHUSETTS ^ _____...Prepared in cooperation with the Commonwealth of Massachusetts ^ Department of Public Works UNITED STATES...rocks_--_-----_--------_--------_--_--_-__--_.-_-Salem Gabbro-Diorite----------------.-------.____.___...map. FIGURES 1-5. Photographs of: 1. Pegmatitic Salem Gabbro-Dioritc---------------2. Hybrid variety of...of Westwood Granite with inclusions of Salem Gabbro-Diorite.--------------------3. Intrusion breccia |  | | Book (volume) | | which in 1865 absorbed the collection of Sussex county minerals made by Samuel Woodruff, of Sparta, New...Hill and Harmony, Warren county. tals in calcite at Franklin, Susse_: county. _gate, (Quartz.) Very...Very tlne crys- Silica. Hoboken,Hudson county. Bound Brook and LibertyCorner, Somersetcounty. NEW JERSEY...cavities in amygdaloidal trap at Plainfield, Union county. See L C. Russell in Am. J. Set. III., XVL, 112...crystals imbedded in gneiss at Franklin, Sussex county. A pebble of alla,ite was found eight feet below |  | | Journal (article/letter/editorial) | | CROSBV, REVIEWER The Petrographical Province of Essex County, Mass. BY HENRY S. WASHINGTON. J . Geol., 6...787-808 ; 7 , 53-64, 1051 2 1 , 284-294.-Although Essex county is a region of great petrographic diversity...feldspathoids, is confined to the immediate vicinity of Salem Xeck. I t is quite distinct from the nepheline syenites...arid soda. Diorife has a large development in Essex County. It is highly varied and represents transitions...Magnetite, 0.73 ; orthoclase, 30.39 ; albite, 42-70 ; anorthite, 4. j r ; hypersthene, 2.03 ; augite, 12.02 ; |  | | Journal (article/letter/editorial) | | Hole Oceanographic Institution, Woods Hole, Massachusetts 02543 P. O. BANKS Department of Earth Sciences...as the subaerial alkalic granites of eastern Massachusetts. The Gulf of Maine lies within the Avalon Platform...greenschist facies, and it is exposed in southeastern Massachusetts and Rhode Island as well as in the Maritime...Warren and McKinstry, 1924, PI. 5) and Quincy, Massachusetts, exhibit essentially identical perthite types...Ann, Peabody, Quincy, and Rattlesnake Hill, Massachusetts. Buma and others (1971) pointed out that the |  | | Report (issue) | | containing various amounts of nephelite, hiueite, and anorthite molecules with elosely similar percentages of...062 .07~ . 085 .080 . 079 Blowing Rock, Watauga County, N.C. Fichtelgebirge, Bavarht .............. Crystal......... Montgomery County, N.C ............ Granitite ............. Eldorado County, C11l .................... ~....... Rhyolite .............. Plumas County, Cal .................. (73. 0) Pitchstone ...... Monte 1\Ienone ....................... Plumas County, Cal .................. ll!adison Plateau, Yellowstone |  | | Catalog/List | | used in the elementary course in mineralogy at Massachusetts Institute of Technology. To keep the cost of...Kyanite Brucite Andalusite Labradori te Calcite Anorthite Antigorite Lepidolite Chalcedony M icrocline (Serpentine).... . . . . . 65 Fasciculite Xis, in schist; Massachusetts . . . . . . . . . . . . . . . . . . . 3 Griinuite... . . . . . . . . . . . . . . . . . . . . . 6 ANORTHITE (calcium aluminum silicate) Xis and xl-fragments;... . . . . . . . . . . 6 Fine, xlinc, white; Massachusetts . . . . . . . . . . . . . . . . 6 DUMORTIERITE |  | | Report (volume) | | Fiftieth anniversary meeting, Boston, Mass., 1898. Salem, Mass. American Geographical Society: Bulletin,...LXV-LXVI, 1898. New York. Essex Institute: Bulletin, Vol. XXX, 1898. Salem, Mass. Federated Canadian... Note on the physiography and geology of Kings County, Nova Scotia. Ottawa Nat., vol. xii, pp. 149-150...149-150,1898. Gives brief notes on the geology of the county. 14 - The mastodon in western Ontario. Abstract...(C. I.). The volcanic rock of Alum Hill, Boulder County [Colorado]. Colo. Sci. Soc., Proc., vol. v, pp |  | | Report (chapter) | | May 28, 2015 Acadian metamorphism in central Massachusetts and south-western New Hampshire: evidence for...for the Acadian metamorphic high in central Massachusetts within which changes in phase composition and...Devonian (Emsian) sedimentation in central Massachusetts. The involvement of Lower Devonian sedimentary...11 Ma (Lyons & Livingston 1979). In central Massachusetts, folds of the earlier phases of Acadian deformation...Zones of thorough retrograde metamorphism at New Salem (Hollocher, 1987) and Quabbin Hill. (~) Orthopyroxene |  | | Journal (article/letter/editorial) | | the Adirondack region lies in northern Hamilton County, N. Y. From oldest to youngest, the formations...feldspar, varying in composition from andesine to anorthite, and 632 PETROLOGICAL ABSTRACTS AND REVIEWS...from north of the Nebraska state line into Kay County, Oklahoma. The ridge reaches its highest elevation...near the north boundary line of Kansas in Nemaha County, where it is less than 500 feet below the surface...south and forms a saddle in northwestern Wabaunsee County, then rises in Morris and Chase counties in underground |  | | Report (issue) | | V; and from an area of abundant ledges west of Salem airport and Forsyth Hill south to Fairy Lake in...in the stratigraphic column prevail. Section IV: Salem Airport - Forsyth Hill The abundance of amphibolite...geologic map of the Niantic quadrangle, New London County Connecticut: U.S Geological Survey Geologic Quadrangle...geologic map of the Uncasville quadrangle, New London County, Connecticut: U.S. Geological Survey Geologic Quadrangle...geologic map of the Montville quadrangle, New London County, Connecticut: U.S. Geological Survey Geologic Quadrangle |
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