• Account & Lists
  • Order
  • 0
  • MENUMENU
    • Home
    • Courses
    • Webinars
    • Publication
      • Membership Publications
      • MagmaChem Publications
    • Geology Shop
    • Staff
    • Donate
    • Cart
    • Checkout
    • My account
    • Register
    • Contact Us
    Bilodeau Keith 1986 Lower Jurassic Navajo-Aztec sandstones S AZ
    September 29, 2020
    Schumacher et al., 1976 Late Devonian tectonism SE AZ
    September 29, 2020

    Nations et al 1985 Cenozoic paleogeography AZ SEPM

    By: Magma Chem Research Institute

    $10.00

    Abstract
    9-5 Nations, Dale, Wilt, J.C., and Hevly, R.H., 1985, Cenozoic paleogeography of Arizona, in Flores, R.M., and Kaplan, S.S., editors, Cenozoic paleogeography of west-central United States: Society of Economic Paleontologists and Mineralogists, Rocky Mountain Section, Symposium 3, p. 335-355.

    Categories: Membership Publications, Publication, Stratigraphy
    Share
    0

    Customers who viewed this item also viewed

    • Keith 1978 future copper potential AZ ocr

      $10.00
    • Keith_1978_Copper Production in Arizona, 1862-1977 ocr

      $10.00
    • Wilt_Keith_1980_Molybdenum_Arizona_ABGMTFieldnotesSept

      $10.00
    • Keith et al 1983 bulletin-194_metallic mineral districts az

      $10.00
    • Wilt Keith_1984_list Mo occurr

      $10.00
    • Keith et al 1991 Magma Series and Metallogeny NV

      $0.00
    • Wilt_1993_alkalinity igneous Alkali-calcic Calc-alkalic PhD

      $0.00
    • Keith swan 1995 Porphyry copper cluster AGS_DIGest 20_OCR 355-362

      $10.00
    • Placeholder

      YITH Donations for WooCommerce

    Description

    Abstract
    9-5 Nations, Dale, Wilt, J.C., and Hevly, R.H., 1985, Cenozoic paleogeography of Arizona, in Flores, R.M., and Kaplan, S.S., editors, Cenozoic paleogeography of west-central United States: Society of Economic Paleontologists and Mineralogists, Rocky Mountain Section, Symposium 3, p. 335-355.

    ABS
    The Cenozoic paleogeography of Arizona is interpreted from the sedimentary and volcanic strata throughout the state. Paleogeographic features such as mountains, plateaus, depositional basins, and drainage systems are interpreted within the constraints of known structural features of Laramide age, and in some places, the depth of erosion into the pre-Cenozoic basement rocks. The absence of Paleocene sediments and the pronounced unconformity beneath Cenozoic rocks attests to an epeirogenic uplift of the region during the Laramide orogeny. This uplift was most pronounced in central and western Arizona. The resultant erosion produced a beveled surface that cut deeply into Precambrian rocks of central Arizona and removed much of the Mesozoic cover of the future Colorado Plateau. Paleocene drainage systems transported the sediments of that age northward to the Uinta basin of Utah and eastward to the San ,Juan basin of New Mexico, along the downwarped Coconino and Baca-Eager basins that were formed as a synclinal trend adjacent to the f1ogollon Highlands. The northward regional drainage was controlled by the Sevier foreland basin in Utah.

    During the Paleocene and Eocene, compressional deformation of the Laramide orogeny up 1ifted the Rocky Mountains. which interrupted eastward drainages and converted the Colorado Plateau to a very large internally drained basin during the Eocene. It was bounded on the west by the Sevier thrust belt, on the north by the Uinta uplift, on the south by the Mogollon Highlands and by the Rocky Mountains to the east. That same deformation created numerous north-trending anticlinal and synclinal folds, thereby converting the Colorado Plateau into a synclinorium. These interior folds controlled the development of drainage patterns throughout the remainder of the Tertiary.

    Eocene strata on the southern Colorado Plateau are typically coarse-grained, well-sorted conglomerates, with clasts of Precambrian igneous and metamorphic rock whose provenance was the Mogollon Highlands of central and southern Arizona. These strata were deposited in elongate synclinal and erosional valleys north of the Mogollon Highlands by streams that flowed northward into the early Tertiary Coconino and Baca-Eager basins on the southern margin of the Colorado Plateau. The coarse clastics were deposited at the southern margins, and fine-grained clastic and carbonate sediments accumulated in the more distal, northern parts of the basins. Drainage patterns were controlled by Laramide anticlinal uplifts and synclines.

    In southern and western Arizona, Paleocene volcanic rocks are common, but no sediments of Paleocene or Eocene age are known. Eocene volcanic rocks are rare in Arizona. Oligocene sediments and volcanics occur in uplifted fault blocks of present-day mountain ranges and in the subsurface of several sedimentary basins. These sedimentary rocks include coarse-grained, angular, poorly-sorted redbeds that were deposited as fanglomerates adjacent to local highs that were formed by Laramide and middle Tertiary orogenesis. Fine-grained clastic, carbonate, and evaporite sediments are intercalated with those basin margin fanglomerates in some areas, suggesting deposition in the center of closed basins. Late Oligocene-Early Miocene strata include fanglomerates and fine-grained fluvial and lacustrine sediments with clasts and flows of silicicic intermediate volcanic rocks reflecting the onset of extensive volcanism and structural warping of the mid-Tertiay orogeny. Middle Miocene sediments and volcanics were affected by low-angle norma1 faulting, subsequent folding, and unroofing of metamorphic core complexes.

    Late Miocene-Pleistocene sedimentary and volcanic rocks are generally confined to basins that coincide with modern valleys throughout the state. Late Miocene to Ho1ocene strata in the Basin and Range Province were deposited in norma1-fault bounded extensional basins initiated by the Basin and Range disturbance. In southern Arizona basin deposits typically exhibit gradation from marginal fanglomerates to fine-grained clastic, carbonate, end evaporite sediments in the centers of closed basins. By late Miocene time, the integrated drainage system of the Gila, Salt, Verde and other tributaries to the lower Colorado River had developed, and dissection of the higher basins (e.g., Chino Valley, Verde, Tonto, and Safford basins) had begun in response to the lowered base level established by the opening of the Gulf of California in the late Miocene. The Pliocene- Pleistocene paleogeography of Arizona was similar to present topography except for a few Holocene volcanic mountains and increased dissection of eroded stream valleys.

    Key words
    Cenozoic, paleogeography, Arizona, Coconino basin, Baca-Eager basin, Mogollon Highlands, Laramide, mid-Tertiary, Basin and Range Disturbance, Eocene conglomerateds,

    Additional information
    Book Format

    Print to Order, Digital Version

    Product details

    Abstract
    9-5 Nations, Dale, Wilt, J.C., and Hevly, R.H., 1985, Cenozoic paleogeography of Arizona, in Flores, R.M., and Kaplan, S.S., editors, Cenozoic paleogeography of west-central United States: Society of Economic Paleontologists and Mineralogists, Rocky Mountain Section, Symposium 3, p. 335-355.

    ABS
    The Cenozoic paleogeography of Arizona is interpreted from the sedimentary and volcanic strata throughout the state. Paleogeographic features such as mountains, plateaus, depositional basins, and drainage systems are interpreted within the constraints of known structural features of Laramide age, and in some places, the depth of erosion into the pre-Cenozoic basement rocks. The absence of Paleocene sediments and the pronounced unconformity beneath Cenozoic rocks attests to an epeirogenic uplift of the region during the Laramide orogeny. This uplift was most pronounced in central and western Arizona. The resultant erosion produced a beveled surface that cut deeply into Precambrian rocks of central Arizona and removed much of the Mesozoic cover of the future Colorado Plateau. Paleocene drainage systems transported the sediments of that age northward to the Uinta basin of Utah and eastward to the San ,Juan basin of New Mexico, along the downwarped Coconino and Baca-Eager basins that were formed as a synclinal trend adjacent to the f1ogollon Highlands. The northward regional drainage was controlled by the Sevier foreland basin in Utah.

    During the Paleocene and Eocene, compressional deformation of the Laramide orogeny up 1ifted the Rocky Mountains. which interrupted eastward drainages and converted the Colorado Plateau to a very large internally drained basin during the Eocene. It was bounded on the west by the Sevier thrust belt, on the north by the Uinta uplift, on the south by the Mogollon Highlands and by the Rocky Mountains to the east. That same deformation created numerous north-trending anticlinal and synclinal folds, thereby converting the Colorado Plateau into a synclinorium. These interior folds controlled the development of drainage patterns throughout the remainder of the Tertiary.

    Eocene strata on the southern Colorado Plateau are typically coarse-grained, well-sorted conglomerates, with clasts of Precambrian igneous and metamorphic rock whose provenance was the Mogollon Highlands of central and southern Arizona. These strata were deposited in elongate synclinal and erosional valleys north of the Mogollon Highlands by streams that flowed northward into the early Tertiary Coconino and Baca-Eager basins on the southern margin of the Colorado Plateau. The coarse clastics were deposited at the southern margins, and fine-grained clastic and carbonate sediments accumulated in the more distal, northern parts of the basins. Drainage patterns were controlled by Laramide anticlinal uplifts and synclines.

    In southern and western Arizona, Paleocene volcanic rocks are common, but no sediments of Paleocene or Eocene age are known. Eocene volcanic rocks are rare in Arizona. Oligocene sediments and volcanics occur in uplifted fault blocks of present-day mountain ranges and in the subsurface of several sedimentary basins. These sedimentary rocks include coarse-grained, angular, poorly-sorted redbeds that were deposited as fanglomerates adjacent to local highs that were formed by Laramide and middle Tertiary orogenesis. Fine-grained clastic, carbonate, and evaporite sediments are intercalated with those basin margin fanglomerates in some areas, suggesting deposition in the center of closed basins. Late Oligocene-Early Miocene strata include fanglomerates and fine-grained fluvial and lacustrine sediments with clasts and flows of silicicic intermediate volcanic rocks reflecting the onset of extensive volcanism and structural warping of the mid-Tertiay orogeny. Middle Miocene sediments and volcanics were affected by low-angle norma1 faulting, subsequent folding, and unroofing of metamorphic core complexes.

    Late Miocene-Pleistocene sedimentary and volcanic rocks are generally confined to basins that coincide with modern valleys throughout the state. Late Miocene to Ho1ocene strata in the Basin and Range Province were deposited in norma1-fault bounded extensional basins initiated by the Basin and Range disturbance. In southern Arizona basin deposits typically exhibit gradation from marginal fanglomerates to fine-grained clastic, carbonate, end evaporite sediments in the centers of closed basins. By late Miocene time, the integrated drainage system of the Gila, Salt, Verde and other tributaries to the lower Colorado River had developed, and dissection of the higher basins (e.g., Chino Valley, Verde, Tonto, and Safford basins) had begun in response to the lowered base level established by the opening of the Gulf of California in the late Miocene. The Pliocene- Pleistocene paleogeography of Arizona was similar to present topography except for a few Holocene volcanic mountains and increased dissection of eroded stream valleys.

    Key words
    Cenozoic, paleogeography, Arizona, Coconino basin, Baca-Eager basin, Mogollon Highlands, Laramide, mid-Tertiary, Basin and Range Disturbance, Eocene conglomerateds,

    Reviews (0)

    Customers' review

    5 stars 0 0 %
    4 stars 0 0 %
    3 stars 0 0 %
    2 stars 0 0 %
    1 star 0 0 %

    Reviews

    There are no reviews yet.

    Be the first to review “Nations et al 1985 Cenozoic paleogeography AZ SEPM” Cancel reply

    Related products

    • Rasmussen Keith 2015 Yucca Mtn NV magma-metal classes

      $10.00
    • Keith 1981 Paleoconvergence rates K-Si ratios Cret-Tertiary SW N Am

      $10.00
    • Annis Keith 1986 post-Laramide igneous rocks AZ

      $0.00
    • Keith 1978 Paleosubduction geometries Cret Tert magmatic patterns SW N Am

      $10.00
    • Wilt Jenney 1976 Tectonic Digest AGS

      $0.00
    • Wilt Scarborough 1981 Cenozoic sediments volcanics Uranium AZ

      $10.00

    Popular Course

    • Courses
    • Webinars

    Popular Publication

    • Membership Publications
    • MagmaChem Publications

    Download Free Publications

    MagmaChem Reference List
    Glossary Of MagmaChem Terminology

    We are a 501c3 Science Corporation, for Education and Research to Better Understand the Earth.

    Other Links

    • Home
    • Publication
    • Contact Us
    My Timeline magmachem
    © MagmaChemri. 2020. All Rights Reserved
      0