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Geologic units containing quartz monzonite

Earth material > Plutonic rock > Granitoid
Quartz monzonite
A plutonic rock defined in the QAPF diagram as having Q between 5 and 20% and P/(A+P) between 35 and 65%
Subtopics:
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Alabama - Arizona - California - Colorado - Connecticut - Idaho - Massachusetts - Maryland - Maine - Montana - New Hampshire - New Jersey - New Mexico - Nevada - Oregon - Rhode Island - Texas - Utah - Virginia - Vermont - Washington - Wyoming
Alabama
Bluff Springs Granite (Precambrian to Paleozoic)
Bluff Springs Granite - leucocratic quartz diorite (tonalite) to quartz monzonite or trondhjemite, locally foliated.
Kowaliga Gneiss (Precambrian to Paleozoic)
Kowaliga Gneiss - coarse-grained granodiorite to quartz monzonite with large plagioclase augen; generally shared among margins.
Opelika Complex; Bottle Granite (Precambrian to Paleozoic)
Bottle Granite - leucocratic, fine to medium-grained, well-foliated quartz monzonite to granite; locally porphyritic.
Wacoochee Complex; Phelps Creek Gneiss (Precambrian to Paleozoic)
Phelps Creek Gneiss - quartz monzonite to granite gneiss in dikes and sheets with wide migmatite zones at contacts.
Zana Granite (Precambrian to Paleozoic)
Zana Granite - quartz monzonite to granite with strong gneissic texture, cut by small pegmatites and aplite dikes, generally elongate; semiconcordant to foliation of country rock.
Arizona
Jurassic granitic rocks (Jurassic)
Granite to diorite, locally foliated and locally alkalic; includes Triassic(?) granitoids in the Trigo Mountains. This unit includes two dominant assemblages of igneous rocks. The Kitt Peak-Trigo Peaks superunit includes, from oldest to youngest: dark, foliated or gneissic diorite, medium-grained equigranular to porphyritic granodiorite, and small, irregular intrusions of light-colored, fine-grained granite. The Ko Vaya superunit, limited to south-central Arizona, includes texturally heterogeneous K-feldspar-rich granitic rocks. (150-180 Ma)
Middle Proterozoic granitic rocks (Middle Proterozoic)
Mostly porphyritic biotite granite with large microcline phenocrysts, with local fine-grained border phases and aplite. Associated pegmatite and quartz veins are rare. This unit forms large plutons, including the Oracle Granite, Ruin Granite, granite in the Pinnacle Peak - Carefree area northeast of Phoenix, and several bodies west of Prescott. (1400-1450 Ma)
California
Cenozoic (Tertiary) granitic rocks, unit 1 (Death Valley) (middle to late Miocene)
Cenozoic (Tertiary) granitic rocks--quartz monzonite, quartz latite, and minor monzonite, granodiorite, and granite; found in the Kingston, Panamint, Amargosa, and Greenwater Ranges in southeastern 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
Paleozoic and Permo-Triassic granitic rocks unit 2 (San Gabriel Mountains) (Late Triassic)
Paleozoic and Permo-Triassic granitic rocks in the San Gabriel and Klamath Mountains
Colorado
Granitic rocks of 1400-m.y. age group (Proterozoic | Mesoproterozoic)
Includes Silver Plume, Sherman, Cripple Creek, St. Kevin, Vernal Mesa, Curecanti, Eolus, and Trimble Granites or Quartz Monzonites; also, San Isabel Granite of Boyer (1962) and unnamed granitic rocks
Granitic rocks of 1700-m.y. age group (Proterozoic | Paleoproterozoic)
Includes Boulder Creek -M.Y. AGE GROUP (AGE 1650-1730 M.Y.)--Includes Boulder Creek, Cross Creek, Denny Creek, Kroenke, Browns Pass, Powderhorn, Pitts Meadow, Bakers Bridge, and Tenmile Granites, Quartz Monzonites, or Granodiorites;
Rocks of Pikes Peak Batholith (1000-m.y. age group) (Proterozoic | Mesoproterozoic)
Includes Pikes Peak, Mount Rosa, Windy Point, and Redskin Granites and unnamed rocks
Connecticut
Pinewood Adamellite (Permian)
Pinewood Adamellite - Light-gray, medium-grained, massive adamellite, composed of microcline, albite, quartz, and muscovite with accessory fluorite. High radioactivity.
Idaho
Granodiorite, quartz monzonite, granite, alaskite, quartz monzodioirte, diorite; Tertiary to Cretaceous, intrusions, undivided; northern, west-central, and southwestern Idaho (Eocene to Cretaceous)
Eocene intrusions; Cretaceous plutons, intermediate, Cretaceous plutons, felsic; metamorphosed granitic intrusive rock
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, metasedimentary rock, metavolcanic rock, and migmatite; Cretaceous to Jurassic plutons in Triassic to Permian metamorphic host rocks, undivided; western Idaho (Cretaceous to Permian)
Mixed, highly altered and migmatitic rocks; derived from imbrication and dynamic events
Quartz monzodiorite, monzogranite, granodiorite, monzonite, diorite; Eocene phaneritic to porphyro-aphanitic intrusions of the quartz monzodiorite suite; Challis magmatic belt (Eocene)
Eocene intrusions of intermediate (mafic to felsic) composition
Massachusetts
Dedham Granite (Proterozoic Z)
Dedham Granite - Light grayish-pink to greenish-gray, equigranular to slightly porphyritic, variably altered, granite south and west of Boston. Includes dioritic rock near Scituate and Cohasset and Barefoot Hills Quartz Monzonite of Lyons (1969) and Lyons and Wolfe (1971). Intrudes Zdi, Zgb, Zb, Zv. Extensive calc-alkaline plutons separated by Boston basin have long been mapped as Dedham. Those to the north of Boston and studied in this report, are referred to as Dedham North. Crystallization ages for the Dedham North suite (based on titanites and zircons) have been determined at 607+/-4 Ma, while ages for the Lynn are slightly younger at 596+/-3 Ma. Both are clearly part of the Late Proterozoic magmatic event. Dates on two samples from Sheffield Heights indicate that the diorite and granite are part of the Dedham North suite. The Dedham south and west of Boston has been dated at 630+/15 Ma (Zartman and Naylor, 1984). Dedham North Granite has a compositionally highly variable suite ranging from leucogranites to granodiorites, tonalites, and quartz diorite. The granites originated by partial melting of a sedimentary protolith, while the intermediate members show a mixing of granitic magma and mafic magma (Hepburn and others, 1993).
Maryland
Ellicott City Granodiorite (Silurian)
Ellicott City Granodiorite - Ranges from biotite granodiorite along margin of body to quartz monzonite in core; age of quartz monzonite core 420 +/- 50 m.y. * by radiogenic dating.
Guilford Quartz Monznoite (Silurian)
Guilford Quartz Monzonite - Biotite-muscovite-quartz monzonite; occurs as discontinuous lenticular bodies; age 420 +/- 50 m.y. * by radiogenic dating.
Gunpowder Granite (Paleozoic)
Gunpowder Granite - Remobilized Baltimore Gneiss. Fine- to medium-grained quartz monzonite with biotitic schlieren; grades into Baltimore Gneiss in core of Towson dome; age 550 +/- 50 m.y. * by radiogenic dating.
Woodstock Quartz Monznoite (Paleozoic)
Woodstock Quartz Monzonite - Massive biotite-quartz monzonite; well-developed granular textures; age 420 +/- 50 m.y. * by radiogenic dating.
Maine
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 quartz monzonite (Devonian)
Devonian quartz monzonite
Devonian quartz monzonite (hornblende accessory mineral) (Devonian)
Devonian quartz monzonite (hornblende accessory mineral) - hornblende-biotite quartz monzonite
Devonian quartz monzonite (muscovite accessory mineral) (Devonian)
Devonian quartz monzonite (muscovite accessory mineral) - muscovite-biotite quartz monzonite
Ordovician quartz monzonite (hornblende accessory mineral) (Ordovician)
Ordovician quartz monzonite (hornblende accessory mineral)
Montana
Boulder batholith and broadly related stocks (Phanerozoic | Cenozoic | Tertiary Cretaceous)
Boulder batholith and broadly related stocks: mainly quartz monzonite, but includes diorite, aplite, and other rocks. The distinctions between masses relative to the Boulder batholith and those mapped as of other ages are locally arbitrary and tentative.
Stillwater complex (Archean Proterozoic(?) preCambrian-Proterozoic(?) preCambrian(?) Phanerozoic | Paleozoic(?) Mesozoic(?) Cenozoic | Cambrian(?) Ordovician(?) Silurian(?) Devonian(?) Carboniferous(?) Permian(?) Triassic(?) Jurassic(?) Cretaceous(?) Tertiary)
Stillwater complex: consists chiefly of ultrabasic intrusive rocks and metamorphic rocks not yet named or subdivided.
New Hampshire
Hornblende-biotite quartz monzodiorite (Jurassic)
Hornblende-biotite quartz monzodiorite - Composition ranges from quartz monzonite to diorite.
Hornblende quartz monzonite (Late Ordovician)
Hornblende quartz monzonite.
New Jersey
Hornblende Granite (Middle Proterozoic)
Hornblende Granite - Pinkish-gray- to medium-buff-weathering, pinkish-white or light-pinkish-gray, medium- to coarse-grained, gneissoid to indistinctly foliated granite and sparse granite gneiss composed principally of microcline microperthite, quartz, oligoclase, and hornblende. Some phases are quartz syenite or quartz monzonite. Includes small bodies of pegmatite and amphibolite not shown on map. U-Pb age approximately 1,090 Ma (Drake and others, 1991b).
New Mexico
quartz monzonites, intermediate intrusives, and other intermediate felsic dikes and plugs (Phanerozoic | Cenozoic | Tertiary)
Quartz monzonites (Eocene) in the Silver City and Los Pinos Range, intermediate intrusives of the Cooke's Range (Oligocene), and other intermediate to felsic dikes and plugs of Oligocene and Eocene age
Nevada
Granitic rocks (Cretaceous)
GRANITIC ROCKS-Mostly quartz monzonite and granodiorite
Granitic rocks (Jurassic)
GRANITIC ROCKS-Mostly quartz monzonite and granodiorite
Granitic rocks (Paleocene to Late Miocene)
GRANITIC ROCKS-Mostly quartz monzonite and granodiorite
Granitic rocks, central and eastern Nevada (Jurassic to Miocene)
GRANITIC ROCKS, CENTRAL AND EASTERN NEVADA-Mostly quartz monzonite and granodiorite. Inconclusively dated or not dated radiometrically
Granitic rocks, western Nevada (Jurassic to Cretaceous)
GRANITIC ROCKS, WESTERN NEVADA (Mesozoic)-Mostly quartz monzonite and granodiorite. Inconclusively dated or not dated radiometrically
Oregon
Hypabyssal intrusive rocks (Miocene and Miocene?) (Miocene)
Hypabyssal, medium-grained, hornblende diorite and quartz diorite in small stocks and large dikes; includes intrusions of medium- to fine-grained gabbro and plugs and small stocks of medium-grained, holocrystalline, olivine andesite. Also includes medium-grained, commonly porphyritic biotite quartz monzonite and leucocratic granodiorite. Many of these intrusive bodies are moderately to intensely propylitized, as are wallrocks they intrude; locally, along shears, the rocks also are sericitized. Potassium-argon ages on several of these shallow intrusions range from about 8 Ma to about 22 Ma (Wise, 1969; Bikerman, 1970; Sutter, 1978; Power and others, 1981a, b; Fiebelkorn and others, 1983)
Rhode Island
Narragansett Pier Plutonic Suite - granite (Permian)
Narragansett Pier Plutonic Suite - granite - Dark-pink to pale-gray, medium-grained equigranular granite, with lesser granodiorite and quartz monzonite. Composed of microcline, oligoclase, quartz, and accessory biotite, magnetite, ilmenite, apatite, sphene, zircon, monazite, apatite, and allanite; muscovite and garnet locally present; secondary chlorite and calcite. Mainly massive, but locally exhibits faint flow foliation. Cut locally by abundant pegmatite, aplite, and composite aplite-pegmatite of mineralogy similar to the host granite. Unit is a 5 km by 40 km batholith that underlies the southern coast of RI. Intrusion during the latter part of Alleghanian deformation of the Narragansett Basin is indicated by its Permian age, rapid cooling, and field relations. The age of the Narragansett Pier is well constrained by several factors. Brown and others (1978) report a Pennsylvanian fossil contained in an inclusion in the pluton. Radiometric ages of 276 Ma by Kocis and others (1978), 272+/-4 Ma by Hermes and others (1981), and 273+/-2 Ma by Zartman and Hermes (1987) are consistently Early Permian. Structural studies by Mosher (1983) and Reck and Mosther (1988) indicate that intrusion began during the third period of deformation in the Narragansett Basin. Argon release patterns (Dallmeyer, 1982) indicate that the granite and intruded sediments had cooled below argon retention temperatures of hornblende by the Late Permian and of biotite by the Early Triassic. Intruded by the Westerly Granite, which has been radiometrically dated at 276+/-7 Ma. The two granites are probably genetically related based on similarities in age, mineralogy, and geochemistry (Hozik, 1992).
Scituate Igneous Suite - monzonite/monzodiorite (Devonian)
Scituate Igneous Suite - monzonite/monzodiorite - Dark-gray to pink, fine- to medium-grained, equigranular rock, containing plagioclase, microcline, quartz, and accessory biotite, garnet, zircon, apatite, allanite, and opaque minerals; secondary muscovite and epidote. Mainly foliated. Varieties include quartz monzonite, monzonite, and monzodiorite. Includes some rock mapped formerly as Cowesett Granite.
Texas
Chinati Mountains caldera volcanic rocks, including Chinati Mountains Group, Mitchell Mesa Ignimbrite, and type area of Petan Basalt (Phanerozoic | Cenozoic | Tertiary | Oligocene)
Chinati Mountains caldera volcanic rocks, including Chinati Mountains Group, Mitchell Mesa Ignimbrite, and type area of Petan Basalt
Utah
Jurassic intrusive rocks in western Utah (Jurassic)
Precambrian intrusive rocks in northwestern Utah (Archean)
Tertiary intrusive rocks in central Utah (Late Eocene to Oligocene)
Tertiary intrusive rocks in northwestern Utah (Oligocene)
Tertiary intrusive rocks in Salt Lake City-Coalville-Randolph region (Late Eocene to Oligocene)
Tertiary intrusive rocks in southwestern Utah (Oligocene to Miocene)
Tertiary intrusive rocks in western Utah (Late Eocene to Early Miocene)
Virginia
Dale City Quartz Monzonite (Cambrian)
Dale City Quartz Monzonite- Quartz monzonite and quartz monzodiorite.
Elk Park Plutonic Group - Biotite augen gneiss (Proterozoic Y)
Elk Park Plutonic Group - Biotite augen gneiss and porphyritic gneiss
Elk Park Plutonic Group - Biotite quartz monzonite (Proterozoic Y)
Elk Park Plutonic Group - Biotite quartz monzonite
Falmouth Intrusive Suite (Mississippian - Pennsylvanian)
Falmouth Intrusive Suite - Granite, quartz monzonite, granodiorite, and tonalite
Melrose Granite (Cambrian)
Melrose Granite - Granite
Vermont
Undifferentiated Gneiss (Precambrian)
Undifferentiated Gneiss - Undifferentiated gneissic biotite granite, quartz monzonite, and granodiorite.
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.
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.
Wyoming
Quartz monzonite of northern Yellowstone (Archean)
QUARTZ MONZONITE OF NORTHERN YELLOWSTONE (AGE 2,740 Ma).

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