 | | Report (issue) | | Bedrock Geoloqy of the Nashua River Area, Massachusetts - New Hampshire By Gilpin Rile Robinson, Jr...ZONE 12 ROCKS IN THE NASHUA RIVER AREA 15 WORCESTER FORMATION 18 Nomenclature, Historical Background...Lithologic Description 40 Radiometric Age 40 FITCHBURG GRANITE 40 Nomenclature and Historical Background...andalusite schists 82 Staurolite-Kyanite Zone 83 Sillimanite Zone 84 CALCAREOUS SILTSTONES AND QUARTZOFELDSPATHIC...schists -io Worcester Formation 97 Staurolite-Kyanite/Andalusite (Actinolite) Zone 97 Sillimanite Zone |  | | Report (issue) | | Map of the Shrewsbury Quadrangle, Worcester County, Massachusetts by J. Christopher Hepburn U.S. Geological...GEOLOGIC MAP SHREWSBURY QUADRANGLE WORCESTER COUNTY, MASSACHUSETTS J. Christopher Hepburn, 1977 Stratified...Stratified Rocks (youngest to oldest) DSw Worcester Phyllite (Devonian-Silurian?) Gray, well-foliated micaceous...Schist (Lower Paleozoic?) Gray to dark-gray sillimanite-bearing quartz-muscovite schist, commonly lacking...Also included are rusty-weathering dark-gray sillimanite bearing mica schist and tan-to light-greenish-gray |  | | 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) | | GEOLOGIC MAP OF THE CLINTON QUADRANGLE, WORCESTER COUNTY, MASSACHUSETTS BY JOHN H. PECK 1975 Explanation... 10- Dike about 40 feet thick. 11 Df 12 Fitchburg Granite 13 Granite, light gray, medium to coarse-grained...867-100 to the "Chiastolite schist facies of the Worcester Phjrllite1* of Emerson, 1917 and unit 4 of Peck...poor outcrop. (in press)* Previously mapped as Worcester Phyllite Constitutes the upper part of Unit 3... 1800 r s, mostly in the Town of Lancaster. Worcester Phyllite by Emerson, 1917: Unit 3 of Peck (in |  | | Report (issue) | | two mica quartz monzonites in the region; the Fitchburg granite to the west and the Chelmsford granite...Milford Granite from the Milford Quadrangle, Massachusetts, yielded a 620 + 15 my, Precambrian, zircon...Formation by Grew (1970) and the Boylston south of Worcester is equivalent to the jphyllite along the Wachusett...was mapped previously as Oakdale Quartzite or Worcester Phyllite by Emerson, 1917. (1976). It comprises...forms pendents, not mapped separately, in the Fitchburg Granite near the southern boundary of the Clinton |  | | 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...deformed gneisses 16 and schists of andalusite to sillimanite metamorphic grade. 17 Newbury Volcanics, exposed...near the fault, increasing gradually to reach sillimanite-> orthoclase grade in the northwest corner of |  | | Report (issue) | | Devonian (?) metasedimentary rocks . . . . 0 185 Worcester (?) Phyllite ......... 185 Harvard Conglomerate...Undifferentiated Worcester(?) Phyllite ............ 187 Correlation and age of the Worcester (?) Phyllite... 19. Photomicrographs of specimens from the Worcester (?) Phyllite and the Dracut 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 |  | | Field Trip Notes | | the chlorite, biotite, garnet, staurolite, and sillimanite zones. For those who prefer the facie s classification...amphibolite facies; and the sillimanite zone is the same as the sillimanite-almandite subfacies of the...in much of central New Hampshire are in the sillimanite zone. In southeastern New Hampshire the metamorphism...east of Portsmouth, the rocks are again in the sillimanite zone. As can be seen from Plate 4, the structural...inplace theory for the southern part, as in Dutchess County, New York. Whether such a combination of theories |  | | Report (volume) | | Oakdale Formation and Paxton Group of Central Massachusetts with Strata in Northeastern Connecticut By M...Oakdale Formation and Paxton Group of central Massachusetts with strata in northeastern Connecticut. (U...Geology, Stratigraphic-Silurian. 3. Geology-Massachusetts. 4. Geology-Connecticut. 5. Paxton Group. 6...with the Oakdale-Paxton sequence of adjacent Massachusetts 1. Contents Ill FIGURES 1, 2. Diagrams...Evolution of stratigraphic terminology for central Massachusetts and northeastern Connecticut prior to this report |  | | Report (volume) | | ... .H33 6. Formation names in the Worcester area, Massachusetts, by Richard Goldsmith, Edward S. Grew........H43 7. Stratigraphic names in eastern Massachusetts and adjacent States, by Richard Goldsmith, David...Section of south wall of Lynn Griffin mine //I, Henry County, Ala., type locality of Baker Hill Format ion....H28 9. Core-hole section at Highland Park, Henry County, Ala., lithologies of the farthest downdip part...the east flank of the Merrimack synclinorium, Massachusetts and New Hamp shire.................... .... |  | | 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) | | Haddam, Connecticut; Russell and Westfield, Massachusetts ; from Bedford, New York ; and many other places...Lode pegmatite near the Royal Gorge in Fremont County, Colorado. Common in the pegmatites of Yavapai...Mountain in the Crested Butte region of Gunnison County, Colorado, in good gem crystals. ANDRADITE, calcium-iron...Andradite has been found at Middletown, Delaware County, Pennsylvania and at other localities in Delaware...St. Peter's Dome, Colorado; and at Rockport, Massachusetts, at which locality some large and unusual crystals |  | | Report (volume) | | nomenclature of the Paxton Group in the Worcester area, Massachusetts, and adjacent Connecticut 3 3. Map of...of the Webster and Southbridge Quadrangles, Massachusetts, showing location of type sections of the Dudley...Brimfield Group in its type area in central Massachusetts. It forms a northeast-trending belt extending...cooperation with the States of Connecticut and Massachusetts, and in part by the U.S. Nuclear Regulatory...conducted in northeastern Connecticut and adjacent Massachusetts (fig. 1) both to aid in quadrangle mapping and |  | | Report (issue) | | POTENTIAL OF EPA REGION 1 Connecticut Maine Massachusetts New Hampshire Rhode Island Vermont OPEN-FILE...POTENTIAL OF EPA REGION 1 Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont R...Preliminary Geologic Radon Potential Assessment of Massachusetts R. Randall Schumann and Linda C.S. Gundersen...aerial radioactivity, and indoor radon data by county. Because of constraints on the scales of maps presented...The reports are available in county formats and State summaries. The county reports typically contain both |  | | Report (volume) | | Structural Dislocations in Eastern Massachusetts GEOLOGICAL SURVEY BULLETIN 1410 Structural Dislocations...Dislocations in Eastern Massachusetts By ROBERT O. CASTLE, H. ROBERTA DIXON, EDWARD S. GREW, ANDREW GRISCOM...faults and mylonite zones that form the eastern Massachusetts dislocation belt UNITED STATES GOVERNMENT PRINTING...under title: Structural dislocations in eastern Massachusetts. (Geological Survey Bulletin 1410) Bibliography:...119.3:1410 1. Faults (Geology) Massachusetts. 2. Mylonite Massachusetts. I. Castle, Robert O. II. Series: |  | | Journal (article/letter/editorial) | | Gneiss Complex crops out from north of Fitchburg, Massachusetts, to the area surrounding Mount Pawtuckaway...O NT Portland Portsmouth Odioiiics Point MASSACHUSETTS black shales. Elsewhere in New England and...mation. R = Rochester; L = Lee; E = Epping; F = Fitchburg; K = Kingston. spicules (near Cupsuptic, Maine;...Vermont) and in moderately to very high-grade (sillimanite) metamorphic rocks (figure 3; Croydon Mountain...have been found in samples from Bernardston, Massachusetts, and in Littleton, New Hampshire (Harris, Hatch |  | | Journal (article/letter/editorial) | | Dartmouth College, Hanover, New Hampshire 03755, USA 2 U.S. Geological Survey, MS 963, P.O. Box 25046...25046, Federal Center, Denver, Colorado 80225, USA Abstract. U-Th Pb systematics for zircon and monazite...O. Box 25046, Federal Center, Denver, CO 80225, USA " N T 0 i I00 , , kilometers i Mass. Conn...Dixon and Lundgren, 1968), northward through Massachusetts (e.g. Peper and Pease, 1976) and New Hampshire...migmatite was originally termed the Fitchburg Granite or Fitchburg pluton by Billings (1956). Paragneiss |  | | Journal (article/letter/editorial) | | \~'acliusett-Coldhrookk aqueduct tunnel in Central Massachusetts. I n that capacity he liad opportunity to examine...Bibliography. I CALLAQHAN, GEOLOQY OF CEXTRAL MASSACHUSETTS 29 I FIO. 1.-Areal geologic mnp ndapted from...section nearly two miles east of Shaft 1 is the Worcester phyllite of Emerson (7, pp. 3-28; 2, pp. 60-61...Shafts 1 and 3. They represent the gray gneissoid Fitchburg granite (2, pp. 231-233), gray granitic pegniatites...diameter, is frequently, but not always, present. Sillimanite or fibrolite IW. 4.-A block of mctn-llmestone |  | | Report (issue) | | Silurian stratigraphy of northeastern Aroostook County, Maine 1 . David C. Roy and Ely Mencher Discussion:...Silurian stratigraphy of northeastern Aroostook County, Maine... Louis Pavlides Lower Devonian Seboomook...Shride Pre-Silurian stratigraphy of northeastern Massachusetts .Kenneth G. Bell and Donald C. Alvord Stratigraphic...Wachusett-Marlborough Tunnel, east-central Massachusetts .James W. Skehan. S.J.. and A. Adel Abu-moustafa...stratigraphy in the Brimfield area, Connecticut and Massachusetts .John D. Peper and M. H. Pease, Jr. Pre-Silurian |  | | Book | | .......ccccccseeeeeeeeeee 70 Interstate 91 Massachusetts Border—White River Junction, Vt.75 Interstate...Junction—Fair Haven, Vt..............cccc eeeeeeEL US 7 Massachusetts Border—Rutland, Vt. ..................cccccccssesseees...crystals, often large and parallel to each other sillimanite long, prismatic crystals, sometimes large and...aligned, often replaced by white mica as in sillimanite high grade regional metamorphism high grade...metamorphism 4 ; | CANADA i) 1 andalusite sillimanite Lake Champlain ao ee narrow zones chlorite |  | | Report (issue) | | folder Plate 2.West looking radar mosaic of Massachusetts.....in folder Plate 3.South looking radar mosaic...of the side looking airborn radar imagery of Massachusetts, Connecticut and Rhode Island indicates that...sensing device, was used to make imagery of Massachusetts in 1968 and Connecticut and Rhode Island in...made; an east and a west looking mosaic for Massachusetts and a north and a south looking mosaic for Connecticut...are in the sillimanite zone of met amor phism ) in fault basins in eastern Massachusetts and Rhode Isl&nd |  | | Book | | GENERALIZED BEDROCK GEOLOGIC EASTERN MA5SACHUSSETS WORCESTER .W o] ~P- FM V/C/N/TY ^^o Red beds MAP...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 |  | | Report (issue) | | -plagioclasequartz schist. Locally contains sillimanite, and tourmaline is a common accessory mineral...n Burton PZmg Dsg PDmg 400 PDmg PDmg Fitchburg Plutons 1200 NO VERTICAL EXAGGERATION 2013...Map of the Pinardville Quadrangle, Hillsborough County, New Hampshire By William C. Burton and Thomas...1000 Srb ury Cli 600 Zma New Hampshire Massachusetts nto 200 Zmlg Ppg Hollis Pluton SEA LEVEL...R.S., comps., 1983, Bedrock geologic map of Massachusetts: Reston, Va., U.S. Geological Survey, 3 sheets |  | | Report (issue) | | so-called Pennsylvanian basins of southeastern Massachusetts. Three papers deal with the geology of alkali...alkali plutonic-volcanic areas in Massachusetts and New Hampshire. High-grade and low-grade (prehnite-pumpellyite)...(prehnite-pumpellyite) metamorphism in Massachusetts and Maine, respectively, are the subjects of two of the papers...and the geology of the Ayer Granodiorite of Massachusetts. JOHN R,. GRIFELN STUDIES IN NEW ENGLAND...Brownlow V1 Vil iX Part I. Geology of eastern Massachusetts INaTOROVGNNE TON “5. B bo 8 OR Bo ee ek 5 ee |  | | Report (issue) | | HART COUNTY, GEORGIA by Willard Huntington Grant ATLANTA 1958 ABSTRACT GEOLOGY OF HART COUNTY, GEORGIA...GEORGIA Hart County is in northeastern Georgia, where the Seneca and Tugaloo Rivers join to form Savannah...biotite-plagioclase gneisses, sillimanite-graphite schists, sillimanite-mica schists and gneisses, and...Geological Survey Bulletin No. 67, "The Geology of Hart County, Georgia," by Willard H. Grant. This investigation...the presence of extensive deposits of sillimanite in Hart County which is an important undeveloped resource; |
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