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Geologic units containing monzodiorite

Earth material > Plutonic rock > Granitoid
Monzodiorite
A plutonic rock defined in the QAPF diagram as having Q < 5% or F/(F+A+P) < 10%, and P/(A+P) between 65 and 90%, and plagioclase more sodic than An50
Subtopics:
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California - Idaho - Massachusetts - Maine - Minnesota - New Hampshire - New Jersey - Nevada - Rhode Island - Utah
California
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
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
Syenite, quartz syenite, monzodiorite, quartz diorite, gabbro, pyroxenite, and hornblendite; Late Proterozoic plutons; east-central Idaho (Late Proterozoic)
Younger or Intermediate Precambrian age intrusive rock undifferentiated.
Massachusetts
Cape Ann Complex (Lower Silurian or Upper Ordovician)
Cape Ann Complex - Squam Granite - Fine- to medium-grained monzodiorite. Squam Granite, though included in the Cape Ann Complex of this report, is probably not genetically related to the Cape Ann Granite and the Beverly Syenite, the dominant lithological types of the Complex. The origin of the granitic melt of the Cape Ann was likely under water-deficient conditions, but the origin of the Squam Granite, described here as a two-feldspar ferrohornblende biotite granite, remains obscure (Hon and others, 1993).
Maine
Cretaceous monzodiorite (Cretaceous)
Cretaceous monzodiorite - Cretaceous biotite monzodiorite
Devonian gabbro/diorite/ultramafic rocks - quartz diorite (Devonian)
Devonian gabbro/diorite/ultramafic rocks - quartz diorite - Devonian gabbro/diorite/ultramafic rocks to biotite quartz diorite - gabbro, diorite, ultramafic rocks, biotite monzodiorite, biotite syenite, and biotite quartz diorite.
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 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 monzodiorite (Devonian)
Devonian monzodiorite - Devonian biotite monzodiorite
Devonian syenite, monzodiorite (porphyritic texture) (Devonian)
Devonian syenite, monzodiorite (porphyritic texture) - Devonian pyroxene-hornblende-biotite syenite and monzodiorite
Minnesota
Multiphase intrusions of hornblende-pyroxene-bearing and biotite-bearing monzonite, monzodiorite, diorite, syenite, and granodiorite (Late Archean)
Multiphase intrusions of hornblende-pyroxene-bearing and biotite-bearing monzonite, monzodiorite, diorite, syenite, and granodiorite - Typically postdates regional metamorphism and deformation associated with the Algoman orogen.
New Hampshire
Augite monzodiorite (Jurassic)
Augite monzodiorite.
New Jersey
Hornblende Syenite (Middle Proterozoic)
Hornblende Syenite - Tan- to buff-weathering, pinkish-gray or greenish-gray, medium- to coarse-grained, gneissoid syenite and lesser amounts of quartz syenite containing microcline microperthite, oligoclase, quartz, and hornblende. Some phases are monzonite or monzodiorite.
Pyroxene Granite (Middle Proterozoic)
Pyroxene Granite - Gray- to buff- or white-weathering, greenish-gray, medium- to coarse-grained, massive, gneissoid to indistinctly foliated granite containing mesoperthite to microantiperthite, quartz, oligoclase, and clinopyroxene. Common accessory minerals include titanite, magnetite, apatite, and trace amounts of pyrite. Some phases are monzonite, quartz monzodiorite, or granodiorite. Locally includes small bodies of amphibolite not shown on map.
Nevada
Granitic rocks (Middle Triassic to Early Jurassic)
GRANITIC ROCKS-Quartz monzonite in northern Esmeralda County
Intrusive rocks of mafic to intermediate composition (Eocene to Miocene)
INTRUSIVE ROCKS OF MAFIC TO INTERMEDIATE COMPOSITION
Rhode Island
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.
Utah
Jurassic intrusive rocks in western Utah (Jurassic)
Tertiary intrusive rocks in central Utah (Late Eocene to Oligocene)
Tertiary intrusive rocks in southeastern Utah (Oligocene)

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