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Geologic units containing Tonalite

Tonalite
A plutonic rock defined in the QAPF diagram as having Q between 20 and 60% and P/(A+P) > 90%
Subtopics:
Trondhjemite

Alabama - Arizona - California - Idaho - Massachusetts - Maryland - Maine - Minnesota - New Hampshire - Nevada - Oregon - Rhode Island - South Carolina - Virginia - Washington - Wisconsin

Alabama

Arizona

California

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

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

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

Oregon

Rhode Island

South Carolina

Virginia

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