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Geologic units containing tonalite

Alabama

Bluff Springs Granite (Precambrian to Paleozoic)

Bluff Springs Granite - leucocratic quartz diorite (tonalite) to quartz monzonite or trondhjemite, locally foliated.

Arizona

Early Proterozoic granitic rocks (Early Proterozoic)

Wide variety of granitic rocks, including granite, granodiorite, tonalite, quartz diorite, diorite, and gabbro. These rocks commonly are characterized by steep, northeast-striking foliation. (1600-1800 Ma)

Proterozoic granitic rocks (Proterozoic)

Undivided Early and Middle Proterozoic granitic rocks (units Xg and Yg). (1400-1800 Ma)

California

Mesozoic granitic rocks, unit 1 (Salinian Block) (Early to Late Cretaceous)

Mesozoic granite, quartz monzonite, granodiorite, and quartz diorite

Mesozoic granitic rocks , unit 2 (Peninsular Ranges) (Middle Jurassic to Late Cretaceous)

Mesozoic granite, quartz monzonite, granodiorite, and quartz diorite

Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges) (Permian to Tertiary; most Mesozoic)

Mesozoic granite, quartz monzonite, granodiorite, and quartz diorite

Mesozoic granitic rocks, unit 5 (Klamath Mountains) (Jurassic to early Cretaceous)

Mesozoic granite, quartz monzonite, granodiorite, and quartz diorite

Schist of various types and ages, unit 3 (Santa Cruz Island) (Jurassic)

Schists of various types; mostly Paleozoic or Mesozoic age; some Precambrian.

Idaho

Intermediate intrusions; mostly Late Cretaceous dioritic to granodioritic plutons of the Idaho batholithic assemblage (Cretaceous)

Cretaceous plutons; intermediate; as granodiorite or diorite; probably includes unmapped older and younger crystalline bodies.

Intrusive rocks: mostly Late Cretaceous granodioritic to granitic plutons of the Idaho batholithic assemblage, but including some Eocene intrusions; northern Idaho and Atlanta batholith (Cretaceous to Eocene)

Cretaceous plutons; probably includes unmapped older and younger crystalline bodies.

Metamorphosed granodiorite, quartz monzonitek tonalite, quartz diorite; mostly Cretaceous orthogneiss and migmatite; northern and Atlanta batholith; margins of Bitterroot and Atlanta batholiths (Cretaceous)

Metamorphosed granitic intrusive rock; associated with pluton margins and stress areas.

Quartz diorite, tonalite, granodiorite, orthogneiss, migmatite; Cretaceous to Jurassic quartz dioritic plutons; western Idaho, Blue Mountains island-arc complex (Early Cretaceous to Late Jurassic)

Lower Cretaceous to Upper Jurassic intrusions in west-central Idaho.

Massachusetts

Ayer Granite (Lower Silurian)

Ayer Granite - Granite to tonalite, partly porphyritic; locally gneissic, locally muscovitic; may include rocks older than Silurian; intrudes Sb and So. Ayer Granite is divided into the Clinton facies and the Devens-Long Pond facies (Gore, 1976). In addition, there are some masses not assigned to either facies that intrude Berwick Formation west and northwest of Lawrence, and that intrude Paxton and Oakdale Formations south of Worcester and west of probable southern continuation of Wekepeke fault. Radiometric ages obtained for facies of Ayer pose problems in assigning ages to unfossiliferous sedimentary rocks they intrude. Clinton facies has a well-defined U-Pb zircon age of 433 +/-5 Ma (Zartman and Naylor, 1984) that authors cite as Early Silurian; Devens-Long Pond facies has a similar age. This age greatly compresses the time available for deposition, burial, deformation, and metamorphism of Berwick and Paxton if these units are truly Silurian. Some of the Ayer not assigned to a facies may have been more properly correlated with Early Devonian Chelmsford Granite and muscovite-biotite granite at Millstone Hill. Bodies south of Worcester may be more properly correlated with Canterbury Gneiss of CT, which lies on strike with Ayer and has Early Devonian age of 329 +/-9 Ma (Zartman and Naylor, 1984). Zartman and Naylor (1984) believe Ayer Granite has same age range as Newburyport Complex. It is quite possible, based on textural and mineralogical differences that the two facies should be separate units, representing different magmatic events (Wones and Goldsmith, 1991).

Belchertown Complex (Devonian)

Belchertown Complex (intrudes De) - Biotite tonalite of marginal stocks.

Cooleyville Granitic Gneiss (Devonian)

Cooleyville Granitic Gneiss - Biotite tonalite to granite in composition, strongly foliated and lineated; contains inclusions of Dpgb; intrudes Dl.

Diorite and tonalite (Devonian and Silurian)

Diorite and tonalite - Includes Dracut Diorite, tonalite near the Ayer Granite, and equivalents of the Exeter Diorite of New Hampshire; intrudes Sb.

Fitchburg Complex (Lower Devonian or younger)

Fitchburg Complex - Inclusions of massive coarse-grained biotite-hornblende tonalite within Dfgd.

Granodiorite of the Indian Head pluton (Precambrian to Paleozoic)

Granodiorite of the Indian Head pluton - Light-gray to pinkish-gray, fine- to medium-grained biotite granodiorite, and gray fine-grained hornblende-biotite tonalite. Intrudes OZm.

Newburyport Complex (Silurian or Ordovician)

Newburyport Complex - Gray, medium-grained tonalite and granodiorite. Newburyport Complex was divided into two facies, tonalitic granodiorite and granite, by Shride (1971). Tonalitic facies was originally termed Newburyport Quartz Diorite and included dioritic rocks north of Clinton-Newbury fault zone that are now called Sharpners Pond Diorite in Nashoba zone, and Topsfield Granodiorite in Milford-Dedham zone. These correlations are no longer tenable due to differences in age and composition. Therefore, Newburyport Complex is restricted to the two facies present in Newburyport area. Rocks formerly mapped as Newburyport Quartz Diorite and Salem Gabbro-Diorite, except for gabbros at Salem Neck, MA, are included in undifferentiated diorite and gabbro unit (Zdigb) on MA State Geologic Map (Zen and others, 1983), largely because they could not be mapped separately at 1:250,000 scale. Unit Zdigb also includes mafic dikes and sills that are probably younger or contemporaneous. Most of the dioritic rocks northeast of Boston previously assigned to Newburyport Quartz Diorite are now assigned to an undifferentiated diorite unit (Zdi) on MA State Geologic Map. Newburyport Complex forms a large mass near Newburyport and a small one to its west, both truncated by Clinton-Newbury fault. Tonalite and granodiorite facies occupies core of Newburyport Complex at Newburyport and is intruded to the north by granite facies; described as medium to dark gray in fresh rock, weathering to both green and red, fine to medium grained, and highly variable in mineralogy. A U-Pb zircon age of 455 +/-15 Ma was determined by Zartman and Naylor (1984) for the tonalite. Granite facies intrudes both the Kittery Formation and the tonalite and granodiorite facies and covers an area of about 45 sq km. Described as light gray to dark gray, buff weathering, and porphyritic. No radiometric ages available for granite facies, but it is conceivable that the two facies are different in age. [Papers presented as chapters in U.S. Geological Survey Professional Paper 1366 are intended as explanations and (or) revisions to MA State bedrock geologic map of Zen and others (1983) at scale of 1:250,000.] (Wones and Goldsmith, 1991).

Sharpners Pond Diorite (Silurian)

Sharpners Pond Diorite - Non-foliated, medium-grained equigranular biotite-hornblende tonalite and diorite. Intrudes Soagr, OZn, OZf.

Maryland

Georgetown Mafic Complex (Late Precambrian (?) - Early Paleozoic )

Georgetown Mafic Complex - Poorly exposed complex of tonalite, dark quartz diorite, gabbro, amphibolite, and undifferentiated basic rocks.

Maine

Devonian granite (muscovite accessory mineral), tonalite (Devonian)

Devonian granite (muscovite accessory mineral), tonalite

Devonian granite-quartz diorite (Devonian)

Devonian granite-quartz diorite: biotite granite, biotite granodiorite, biotite tonalite, biotite quartz syenite, biotite quartz monzodiorite, and biotite quartz diorite.

Devonian granite-quartz monzonite (hornblende accessory mineral) (Devonian)

Devonian granite-quartz monzonite (hornblende accessory mineral) Devonian hornblende-biotite granite to quartz monzonite- hornblende-biotite granite, hornblende-biotite granodiorite, hornblende-biotite tonalite, hornblende-biotite alkali feldspar quartz syenite, hornblende-biotite quartz syenite, and hornblende-biotite quartz monzonite.

Devonian granodiorite - quartz diorite (Devonian)

Devonian granodiorite - quartz diorite - Devonian biotite granodiorite to biotite quartz diorite - biotite granodiorite, biotite tonalite, biotite quartz syenite, biotite quartz monzodiorite, and biotite quartz diorite.

Devonian granodiorite - quartz monzodiorite (hornblende accessory mineral) (Devonian)

Devonian granodiorite - quartz monzodiorite (hornblende accessory mineral) - Devonian hornblende-biotite granodiorite to quartz monzodiorite - hornblende-biotite granodiorite, hornblende-biotite tonalite, hornblende-biotite quartz syenite, and hornblende-biotite quartz monzodiorite.

Devonian granodiorite - quartz syenite (porphyritic texture) (Devonian)

Devonian granodiorite - quartz syenite (porphyritic texture) - Devonian porphyritic biotite granodiorite to quartz syenite - porphyritic biotite granodiorite, porphyritic biotite tonalite, porphyritic alkali feldspar-biotite quartz syenite, and porphyritic biotite quartz syenite.

Devonian tonalite (Devonian)

Devonian tonalite - biotite tonalite

Minnesota

Saganaga Tonalite of northeastern Minnesota (Late Archean)

Saganaga Tonalite of northeastern Minnesota - Emplaced more-or-less contemporaneously with deposition of metasedimentary and metavolcanic rocks

Syntectonic intrusions of the Penokean orogen (Early Proterozoic)

Syntectonic intrusions of the Penokean orogen - Includes the Pierz Granite, the Freedhem and Bradbury Creek Granodiorites, and several unnamed intrusions of granite, granodiorite, tonalite, and gabbro in east-central Minnesota

Syntectonic to pretectonic granitoid rocks (Late Archean)

Syntectonic to pretectonic granitoid rocks - Granite and granodiorite of the Vermilion Granitic Complex, the Giants Range and Bemidji batholiths, as well as smaller intrusions of tonalite and monzonite of the Algoman orogen in northern Minnesota. Also includes the Odessa, Sacred Heart, and Fort Ridgely Granites exposed along the Minnesota River Valley in southwestern Minnesota.

New Hampshire

Ayer Granodiorite (Early Silurian)

Ayer Granodiorite - Gneissic granite to tonalite, locally coarsely porphyritic and muscovitic, southeastern New Hampshire.

Bethlehem Granodiorite (Early Devonian)

Bethlehem Granodiorite (Bethlehem Gneiss of Billings, 1955) - Gray, strongly foliated biotite-muscovite granodiorite and associated tonalite and granite.

Biotite tonalite (Early - Late Devonian)

Biotite tonalite - Dark-gray; found in southeastern and western New Hampshire.

Concord Granite (Late Devonian )

Concord Granite - Gray two-mica granite, locally grading to tonalite.

Granite, granodiorite, and tonalite (Late Ordovician)

Granite, granodiorite, and tonalite.

Granodiorite to tonalite (Late Ordovician)

Granodiorite to tonalite.

Hornblende-biotite tonalite (Middle Ordovician)

Hornblende-biotite tonalite.

Hornblende granodiorite of Highlandcroft pluton (Late Ordovician)

Hornblende granodiorite of Highlandcroft pluton - Contains minor tonalite and diorite.

Kinsman Granodiorite (Early Devonian )

Kinsman Granodiorite - (Kinsman Quartz Monzonite of Billings, 1955) - Foliated granite, granodiorite, tonalite, and minor quartz diorite; large megacrysts of potassium feldspar characteristic; garnet locally abundant.

Newburyport Complex (early Late Silurian)

Newburyport Complex - Gray, medium-grained tonalite and granodiorite.

Porphyritic phase of hornblende-biotite tonalite (Middle Ordovician)

Porphyritic phase of hornblende-biotite tonalite.

Spaulding Tonalite (Early Devonian)

Spaulding Tonalite (Spaulding Quartz Diorite of Fowler-Billings, 1949) - Weakly foliated to nonfoliated, spotted biotite quartz diorite, tonalite, granodiorite, and granite; garnet and muscovite may or may not be present.

Tonalite (Middle Ordovician)

Tonalite - Extended from Joslin Turn, Vermont.

Tonalite, diorite, granodiorite, and granite (Late Ordovician )

Tonalite, diorite, granodiorite, and granite - More mafic rocks have hornblende; part of Lost Nation pluton.

Two-mica tonalite (Early - Late Devonian)

Two-mica tonalite - Similar to Concord Granite; found in south-central New Hampshire.

Winnipesaukee Tonalite (Early Devonian)

Winnipesaukee Tonalite (Winnipesaukee Quartz Diorite of Billings, 1955) - Gray, massive to foliated tonalite and minor quartz diorite, granodiorite, and granite. Probably coeval with Spaulding Tonalite.

Nevada

Intrusive rocks (Late Cretaceous to Middle Miocene)

INTRUSIVE ROCKS-Aphanitic, porphyritic, and coarsely granular rocks ranging in composition from diorite to granite. Clark County

Intrusive rocks of mafic to intermediate composition (Eocene to Miocene)

INTRUSIVE ROCKS OF MAFIC TO INTERMEDIATE COMPOSITION

Oregon

Granite and diorite (Jurassic and Triassic) (Triassic and Jurassic)

Felsic to intermediate, granitoid intrusive rocks. Includes Jurassic muscovite granodiorite, hornblende gabbro, tonalite, and quartz diorite of southwest Oregon (Smith and others, 1982)

Granitic rocks (Cretaceous and Jurassic) (Late Jurassic and Early Cretaceous)

Mostly tonalite and quartz diorite but including lesser amounts of other granitoid rocks. Potassium-argon ages determined on hornblende indicates plutons range in age from 143 to 166 Ma (Hotz, 1971)

Rhode Island

Esmond Igneous Suite - mafic/intermediate rock (Late Proterozoic)

Esmond Igneous Suite - mafic/intermediate rock - Dark-gray, purple, or black, medium- to coarse-grained rock that may contain plagioclase, quartz, clinopyroxene, hornblende, olivine, and accessory biotite, epidote, sphene, zircon, apatite, and opaque minerals; secondary chlorite, sericite, and saussurite. Massive to variably foliated. Composition includes tonalite, quartz diorite, diorite, and gabbro. Includes rock mapped formerly as quartz diorite.

South Carolina

Biotite metatonalite and granodiorite (Early Paleozoic-Neoproterozoic)

Biotite metatonalite and granodiorite

Little Mountain metatonalite (Neoproterozoic)

Little Mountain metatonalite

Metatonalite (Neoproterozoic)

Metatonalite: metamorphosed biotite tonalite and lesser amounts of hornblende tonalite, trondhjemite, and granodiorite

Virginia

Falls Church Intrusive Suite (Cambrian-Ordovician)

Falls Church Intrusive Suite - Tonalite, granodiorite, monzogranite, and trondhjemite.

Falmouth Intrusive Suite (Mississippian - Pennsylvanian)

Falmouth Intrusive Suite - Granite, quartz monzonite, granodiorite, and tonalite

Georgetown Intrusive Suite (Cambrian)

Georgetown Intrusive Suite - Tonalite, quartz gabbro, quartz diorite, metapyroxenite, and hornblendite.

Metatonalite (Proterozoic)

Metatonalite

Plagiogranite Tonalite (Cambrian-Ordovician)

Plagiogranite tonalite

Washington

Mesozoic granitic rocks, undivided (Mostly Cretaceous-Jurassic)

Granite, quartz monzonite, quartz diorite, granodiorite, and trondhjemite. Includes diorite in southeastern Washington; diorite and gabbro near Concunully in Okanogan County; gneiss, schist, and migmatites in areas of Chelan, Colville, and Okanogan batholiths. Includes high-grade metamorphic rocks of Precambrian age in Spokane area.

Pre-Carboniferous intrusive rocks (Paleozoic)

Meta-quartz diorite, hypersthene diorite, and gneissose and directionless quartz diorite of eastern Skagit County. Quartz diorite and diorite in the San Juan Islands. Includes amphibolite and gneiss locally.

Pre-Tertiary metamorphic rocks, undivided (Probably Permian)

Schist, gneiss, marble, quartzite, amphibolite, greenstone, metaconglomerate, graywacke; includes metasedimentary, volcanic, and intrusive rocks. Some areas, as on San Juan Islands, show little if any metamorphism.

Pre-Upper Jurassic metamorphic rocks of the medium and high-grade zone (Early Jurassic-Triassic)

Schist, amphibolite, and minor lime-silicate rocks, marble, quartzite, and metaconglomerate.

Tertiary-Cretaceous basic intrusive rocks (Cretaceous-Jurassic)

Diorite and gabbro in western Snohomish County.

Tertiary-Cretaceous granitic intrusive rocks (Early Tertiary-Late Cretaceous)

Granite, granodiorite, trondhjemite, and quartz diorite. Late Cretaceous and/or early Tertiary.

Tertiary dikes, sills, and small intrusive bodies (Middle to Late Tertiary)

Dikes are commonly diabase; plugs and sills are generally andesite porphyry and dacite.

Tertiary granitic rocks (Probably mostly Eocene; ranges from Miocene to Paleocene)

Granite, quartz monzonite, quartz diorite, granodiorite, and trondhjemite. Includes dacite porphyry and granite breccia near Bumping Lake, Yakima County.

Wisconsin

Foliated tonalite (Early Proterozoic)

Foliated tonalite - Medium-gray, mottled, medium-grained, equigranular tonalite and granodiorite. Intrudes rocks of the Milladore Volcanic Complex.

Granite-tonalite (Early Proterozoic)

Granite-tonalite - Gray to pinkish-gray, medium-grained, generally equigranular granite to tonalite and granitoid gneiss; locally includes diorite. Intrudes older metavolcanic rocks. Zircon ages range from 1852 +/- 15 to 1862 +/- 5 Ma

Granodiorite-tonalite (Early Proterozoic)

Granodiorite-tonalite - Gray, medium-grained intrusive rocks, including intrusion breccias. Exposed in central Wisconsin. Zircon ages range from 1837 to 1847 Ma