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| 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 |
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| 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...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 ...SYNTHESIS 102 ENVIRONMENT OF DEPOSITION 108 Worcester Formation 108 Merrimack and Oakdale Formations |
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| 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 |
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| GEOLOGIC MAP OF THE CLINTON QUADRANGLE, WORCESTER COUNTY, MASSACHUSETTS BY JOHN H. PECK 1975 Explanation...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...Clinton 19 previously as Oakdale Quartzite or Worcester Phyllite by Emerson, 20- 1917. Graded beds are |
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| 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 |
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| 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 |
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| 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 |
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| 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...phyllitic schist in the middle part, and medium-gray sillimanite-quartz-mica schist in the v lower part, all interstratified...is inferred; it is again exposed in Auburn, Massachusetts. nu, num Nashoba Formation, undivided, consists |
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| 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: |
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| Resources of the Hudson and Maynard Quadrangles Massachusetts By WALLACE R. HANSEN GEOLOGICAL SURVEY BULLETIN...Prepared in cooperation with the Commonwealth of Massachusetts Department of Public Works UNITED STATES GOVERNMENT...metasedimentary rocks________________________ Worcester formation___________________________________ Harvard...formation______________________________ In the Worcester formation_____________________________ General...Schistosity in the mica schist facies of the Worcester formation______ Joints and their structural s |
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| 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 |
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| ... .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.................... .... |
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| Selected Bibliography of Andalusite, Kyanite Sillimanite, Dumortierite Topaz, and Pyrophyllite in the... Selected Bibliography of Andalusite, Kyanite Sillimanite, Dumortierite Topaz, and Pyrophyllite in the...______-____________________________________ -________ Sillimanite _ _________________________________________________...SELECTED BIBLIOGRAPHY OF ANDALUSITE, KYANITE SILLIMANITE, DUMORTIERITE, TOPAZ, AND PYROPHYLLITE IN THE...compilation of 566 references on the kyanite, or sillimanite, group of minerals and pyrophyllite to December |
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| figures; these are defined in Table 1. Sillimanite+muscovite Sillimanite + K-feldspar Following the terminology...NC NJ Alabama Connecticut Delaware Georgia Massachusetts Maryland Maine North Carolina New Jersey NH...complex Chain Lakes massif Canaan Mountain Dutchess County Elmore Mountain Exeter pluton Green Mountain massif...diorite TM Taconic Mountains WD Waterbury dome WM Worcester Mountains Central Appalachians AA BGD BR CP FRG...Wenlock metamorphism in the northern Appalachians, USA. Abbreviations are defined in Table 1. The stippled |
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| 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 |
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| 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 |
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| 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 |
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| 62.92 (1) Goat Mountain, Shoshone Co., Idaho, USA. (2) Al2 SiO5 : Polymorphism & Series: kanonaite...kanonaite. Trimorphous with kyanite and sillimanite; forms a series with Occurrence: A result of contact metamorphism...Detrital in some sandstones. Association: Kyanite, sillimanite, cordierite, corundum, garnet, tourmaline, mica... Galway, Ireland. In the USA, from Lancaster, Worcester Co., Massachusetts; Leiperville, Delaware Co...thermal expansions of andalusite, kyanite, and sillimanite. Amer. J. Sci., 259, 651{668. (4) Winter, J.K |
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| 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 |
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| Geologic Map of the Maryborough Quadrangle, Massachusetts by Patrick J. Barosh U.S. Geological Survey...Marlborough quadrangle, Middlesex and Worcester Counties, Massachusetts: U.S. Geological Survey Open File... The Salem in the type area around Salem, Massachusetts, has a radiometric age of about 450 my Hh 10...Milford Granite from the Milford Quadrangle, Massachusetts, yielded a 620 ^ 15 my, Precambrian, zircon...part but includes in addition, some sulfidic sillimanite-mica schist and discontinuous beds of marble |
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| 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 |
 | | 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 |
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| Vertical Bearing and plunge of mineral lineation (sillimanite) K f r May be combined with foliation symbol...OF THE EAST BROOKFIELD QUADRANGLE, WORCESTER COUNTY, MASSACHUSETTS DESCRIPTION OF MAP UNITS IGNEOUS BOCKS*...thinly layered quartz-biotite-potassium feldspar-sillimanite-garnet schist and gneiss. hugs Reddish-brown...quartz-biotite-potassium feldspar-pl&gioclase-siLLimanite-garnet schist and gneiss. Unit includes unmapped...plagioclase-'biotite -quartz -garnet ^iw^ potassium feldspar-sillimanite' gneiss. Garnet porphyn roblasts locally exceed |
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| fault-controlled retrograde metamorphism. In the USA at least, Alleghanian metamorphism also affected...the Narragansett Basin of Rhode Island and Massachusetts is the largest and best known (Fig. 3). In this... UNDIFF. POST-ACADIAN METAMORPHIC ZONES Si-Sillimanite St-Staurolite+-Kyanite G-Garnet B -Biotite ... Scituate Basin : WS, Woonsocket Basin; WOR, Worcester Basin; FZ, fault zone. As described in the text...the basin ranges from chlorite to kyanite or sillimanite grade, with intensity increasing to the S and |
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| of the ; Athol Quadrangle Worcester and Franklin ICounties, Massachusetts By DONALD F. ESCHMAN -GEOLOGY...-GEOLOGY OF SELECTED QUADRANGLES IN MASSACHUSETTS ..4 .GEOLOGICAL \ SURVEY BULLETIN 1163-C Prepared...Prepared in cooperation with the Massachusetts Department of * Public UNITED STATES GOVERNMENT PRINTING OFFICE...quadrangle _ In pocket Figure 1. Index map of Massachusetts showing location of the Athol quadrangle___...SELECTED QUADRANGLES IN MASSACHUSETTS SURFICIAL GEOLOGY OF THE ATHOL QUADRANGLE WORCESTER AND FRANKLIN COUNTIES |
