laramide pronunciation

Nearby towns include Dudleyville and Winkelman, both located 7 km to the west. The Swim Hole fault has also been projected from north of the line of section (Fig. 3), is interpreted to be a fault-propagation fold in the footwall of the fault. All Rights Reserved. Beds near the base of the upper Cloudburst Formation in the map area have quite variable dips, commonly between 30E and 50E, and to the north near Hackberry Wash dip 50E (Maher et al., 2004). Difficult. The axial plane was estimated by assuming a simple bisector of the two relatively planar fold limbs. "[5] This turnover event saw the replacement of specialized and highly ornamented centrosaurine and lambeosaurines by more basal upland dinosaurs in the south, while northern biomes became dominated by Triceratops with a greatly reduced hadrosaur community. Rate the pronunciation difficulty of Ceramide. This Hg correction is not significant for most analyses because our Hg backgrounds are low (generally 150 cps at mass 204). No exposures of the Hackberry fault in the field area were adequate to obtain a reliable attitude on the fault surface, although to the north, Dickinson (1995, 1996, 2001) documented dips ranging from 55 to 30. Similar relationships are observed just north of the field area (Nickerson et al., 2010). We are a research and service division of: The Laramide orogeny was a mountain building event that affected the US western interior during the Late Cretaceous to Paleogene (approximately 9045 million years ago). Reconstructions along these sections, combined with results from section AA, are used to gain further insight into the geometry of Laramide reverse faults within the study area. Since you have exceeded your time limit, your recording has been stopped. Laramides La Jara Mesa Project is a sandstone-hosted roll front style deposit in New Mexico. January 04, 2017 Laramide Resources Ltd. (TSX:LAM) entered into a binding letter of intent to acquire Hydro Resources Inc. from Uri, Inc. for $12.5 million in cash and notes on November 9, 2015. Both files are viewable using Midland Valley MoveViewer; available at www.mve.com/software/moveviewer. The orogeny is commonly attributed to events off the west coast of North America, where the Kula and Farallon Plates were sliding under the North American plate. The amount of Laramide shortening (e = l/li) in the study area was 1.8 km or 20%, followed by a small amount of late Laramide extension. Hear a word and type it out. This tectonic setting produces a pattern of compressive uplifts and basins, with most of the deformation confined to block edges. You've got the pronunciation of lampyridae right. 3) and the westernmost exposure of Cretaceous diorite. The major feature that was created by this orogeny was deep-seated, thick-skinned deformation, with evidence of this orogeny found from Canada to northern Mexico, with the easternmost extent of the mountain-building represented by the Black Hills of South Dakota. This porphyry dike is similar, if not identical, in original composition to sericitically altered porphyry dikes a few hundred meters north. You have earned {{app.voicePoint}} points. 20) indicates 0.75 km of displacement and an original dip of 58W. 21). As noted above, faults of set 2b were active before deposition of the upper member of the Cloudburst Formation and probably bound half-grabens that were forming during deposition of the lower member of the Cloudburst Formation (see generation 1). 2) to be low-angle thrusts that are part of a regional overthrust system. Black rectangle in map of Arizona designates area of the figure. 3), is an example of a Cenozoic fold (Dickinson, 2002). Copper occurrences are limited and typically consist of copper-oxide minerals, with few instances of primary copper mineralization. 16), indicating that alteration postdates reverse faulting. 5 and 16). This results in a degree of internal circularity within the reconstruction because the extensional structure and the pre-extensional structural model are not mutually independent (e.g., Pape et al., 2016). This means that every time you visit this website you will need to enable or disable cookies again. Record the pronunciation of this word in your own voice and play it to listen to how you have pronounced it. The ablated material is carried in helium into the plasma source of a Nu HR ICPMS, which is equipped with a flight tube of sufficient width that U, Th, and Pb isotopes are measured simultaneously. PDF Post-Laramide Thrust Backsliding and Arch Collapse: A Mechanism for It is also an area where numerous porphyry copper systems were forming broadly contemporaneous with shortening (Titley, 1982). The challenge of dealing simultaneously with both Laramide shortening and Cenozoic extension also complicates the assignment of uncertainties in structural reconstructions. They also claim the Tecolote syncline is coaxial with the southern Jim Thomas syncline. Supplemental Text1, Part 1, contains descriptions of the various rock types. Because of this, dips are also uncertain, but they are estimated to be 20E because of the attitudes of similar faults only a few km to the north near Ripsey Wash (Nickerson et al., 2010, p. 308309). Work is centered on geologic mapping, and utilizes structural geology (faults and folds), low-temperature thermochronology (timing of cooling), and minor basin analysis (sedimentology and stratigraphy) to better understand the spatial configuration, style, and timing of Laramide tectonism. Consequently, faults of an intermediate generation are presumed to have been involved during the deposition of the Cloudburst Formation in the study area and can be inferred on an old published seismic-reflection survey in a region nearby (figs. The fold measures 10 km along its axis and consistently trends north-northwest along the strike of the Hackberry fault. Folds associated with the Tecolote fault affect rocks of the Apache Group on the northwestern side of the fault (Fig. 20) indicates that the Rattler Granodiorite crosscuts the Romero Wash fault. Here, the strike of bedding ranges from N-S to E-W and dips north upright, east upright, vertical, and overturned west (Figs. After the seas retreated from the Rocky Mountain region, floodplains, swamps, and vast lakes developed in the basins. Modern topography is shown by bold black line and is dashed where Cenozoic rocks presently crop out. Seismic-reflection data, map relationships, and drill-hole piercements have led authors to interpretations with reverse faults and subsidiary backthrusts in the Front Range of Colorado (Erslev et al., 2004) and in the Rattlesnake Mountain area of Wyoming (Erslev, 1993), both of which are classic locales of Laramide deformation. Smith Granodiorite porphyry also cuts the Tecolote fault, but the Tecolote fault cuts a dacite porphyry within the fault-bounded footwall Tecolote syncline (Tables 3 and 4). It primarily involves units as young as the San Manuel Formation, with dips of strata ranging from horizontal to dipping gently to moderately to the east or west. Tilting history of the San Manuel-Kalamazoo porphyry system 15) The Swim Hole fault places younger Apache Group and diabase on older Pinal Schist, and the Hackberry fault places structurally higher Ruin Granite intruded by diabase sheets on structurally lower Ruin Granite without diabase. Laramide magmatism resulted in numerous porphyry copper systems in southeastern Arizona, making the region one of the largest copper provinces in the world (Titley, 1982). In New Mexico, the work has important implications for the states natural resources, such as oil and gas and metals, as well as groundwater. The faults of set 2a, located on the eastern side of the study area, presently strike almost east-west, and some of them, although normal faults, are now apparent reverse faults (i.e., they initiated as normal faults with a westerly component of dip but have been rotated through vertical and currently have a steep easterly component of dip). Laramide Resources Ltd futures price quote with latest real-time prices, charts, financials, latest news, technical analysis and opinions. Initial Laramide tectonism recorded by Upper - GeoScienceWorld Please enable Strictly Necessary Cookies first so that we can save your preferences! Ion yields are 0.8 mv per ppm. Faults belonging to fault set 2a (Table 1) may also be Laramide faults. In all examples documented to date in the Laramide porphyry copper belt of Arizona, porphyry generation and associated hydrothermal alteration postdates reverse faulting at the point of observation. Due to relative offsets of diabase and Apache Group just southeast of Bee Wash, the Romero Wash fault is interpreted to continue northward through the Bee Wash area (Figs. 3). The Company is involved in the exploration and development of mineral properties in Australia and the United States. Dickinson (2002) built upon this idea, proposing that the Tecolote and Jim Thomas synclines may reflect flat-ramp detachment geometry on the Hackberry fault. All Rights Reserved, {{app['fromLang']['value']}} -> {{app['toLang']['value']}}, Pronunciation of Ceramide with 2 audio pronunciations. Laramide Resources Ltd. is a Canada-based company with mineral resource projects strategically positioned to deliver uranium for clean nuclear power to meet the electricity needs. This paper reexamines the tilting history in light of new work in the region and reinterprets the geometry of the deposit. The Projects range from advanced exploration assets in Australias premier exploration districts to large, late stageprojects in the USA that have potential to quickly become uranium-producing operations in response to strengthening market demand. Examples of Laramide orogeny in a sentence. 17A). Fault set 2b consists of the Dirt and Sand faults (Table 1), which occur west of Jim Thomas Wash. 3; Table 4). Laramide's wholly owned subsidiary, Tackle Resources Pty Ltd, owns 100% of . Congrats! (Most of the time.). Log in or Drainage systems imposed at that time persist today. Scientists have long debated the uplift of the Colorado Plateau region (CP), including the modern Colorado River (CR) drainage from the Rocky Mountains to where it exits the modern plateau southwest of Grand Canyon (GC; Figure 1).This region was a tectonically stable sedimentary basin near sea-level until the Laramide orogeny initiated in the Late Cretaceous (Hunt, 1956; Nations . Samples were processed such that all zircons were retained in the final heavy-mineral fraction. Location for this figure is shown in Figure 3. Can you pronounce this word better. The Jim Thomas syncline, located along Jim Thomas Wash (Fig. Other reverse faults within the region may also deserve further study. ), both of which are located in the eastern half of the study area (Figs. There is a lack of a close spatial relationship between hydrothermal alteration and reverse faulting, and alteration patterns exhibit a general lack of structural influence. The genetic linkage between flat slab subduction and the reduction in EET suggests that the extent of flat subduction can be mapped by changes in the EET . ", Maps, animation, detailed information (UCLA), https://en.wikipedia.org/w/index.php?title=Laramide_orogeny&oldid=1112549597, This page was last edited on 26 September 2022, at 21:51. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. The initial dip of each fault and the amount of tilting associated with each generation of faults can be estimated using structural reconstructions of faults and the angular relationship between synextensional strata and faults of various generations (Fig. Laramide and/or Cenozoic intrusions have been removed for simplicity. The groundmass consists primarily of plagioclase laths, with lesser amounts of biotite, chlorite, and sparse quartz. For most analyses, the crossover in precision of 206Pb/238U and 206Pb/207Pb ages occurs at ca. In addition, the relatively large interlimb angle of the Jim Thomas syncline supports this claim. Geosphere 2017;; 13 (2): 577607. By continuing to use our website, you are agreeing to our, Copyright 2023 Geological Society of America. 3), and the dacite dike appears to be folded. Likewise, faults of set 3 in the study area likely bounded the half-grabens in which the sediments of the San Manuel Formation accumulated (see generation 3 below). Only results for spots within the tips of zircon grains are shown for sample Ksg-p. CHARACTERISTICS OF FAULTS IN THE ROMERO WASHTECOLOTE RANCH AREA, U-Pb AGES OF IGNEOUS ROCKS IN ROMERO WASHTECOLOTE RANCH AREA, CURRENT AND RESTORED ORIENTATIONS OF TERTIARY NORMAL FAULTS1, CURRENT AND RESTORED ORIENTATIONS OF LARAMIDE FAULTS1. To save this word, you'll need to log in. Pronunciation of Laramide orogeny with 2 audio pronunciations 0 rating 0 rating Record the pronunciation of this word in your own voice and play it to listen to how you have pronounced it. The Laramide orogeny was a time period of mountain building in western North America, which started in the Late Cretaceous, 70 to 80 million years ago, and ended 35 to 55 million years ago. Inferred 3 Axes Strike-slip and thrust faults observed have 3 axes consistent with Laramide N66E- directed shortening as also observed by prior workers. 19). Step (H) involves no faulting but demonstrates erosion that produces the modern cross section. The primary host rock for alteration is Ruin Granite, with a smaller areal extent of alteration in the Smith Granodiorite. A fold is present in the hanging wall of the fault as an overturned east-vergent anticline with a north-trending fold axis. Late Cretaceous-early Eocene Laramide uplift, exhumation, and basin Therefore, the Hackberry and Swim Hole faults probably controlled the half-grabens in which the sediments of the San Manuel Formation accumulated. In order to understand the initial orientations and configuration of these Laramide faults, the effects of Cenozoic normal faulting must be restored. 3). Faults of generation 2 cut and offset faults of generation 1, and faults of generation 2 are cut by faults of generation 3. As a consequence, no magmatism occurred in the central west of the continent, and the underlying oceanic lithosphere actually caused drag on the root of the overlying continental lithosphere. However, south of this area, the Romero Wash fault splits into two reverse faults that appear to continue southward under Cenozoic cover (Fig. 5). 18). The Dirt fault and Sand fault appear to be crosscut by a N-Strending fault that likely belongs to fault set 4 (Fig. Seems like your pronunciation of Ceramide is not correct. Ductile features related to Laramide shortening, such as tectonite fabrics, have also been documented (Bykerk-Kauffman and Janecke, 1987). Mapped contacts were plotted over ArcGIS satellite images, and satellite images were used to extend mapped contacts into inaccessible areas. 3 and 9D). This is directly supported by the geometric relationships between faults and related synextensional deposits observed in the field (Fig. 6) is also the only location where the Bee Wash fault is exposed. Although other boundaries appear to be monoclinal flexures, faulting is suspected at depth. The maps presented here use symbols that are consistent with this terminology (see legends of Figs. The majority of faults within this set occur east of Eagle Wash in the northeastern portion of the study area (Figs. 2), where Bykerk-Kauffman and Janecke (1987) dated Laramide tectonite fabrics that indicate east-vergent movement, but their relationship to the two aforementioned, more shallow styles of shortening, is uncertain. This change in bedding orientation occurs locally around the Romero Wash and Bee Wash faults, as shown in roughly E-W cross sections (Figs. These veins range from 1 to 2 mm to a few cm wide, occur in abundances ranging from roughly 220 veins per meter, strike roughly E-NE, and dip steeply N or S (Fig. Associated veins include carbonate, epidote, and chlorite veins. The largest and most prominent fold within the study area is the Tecolote syncline. This erosion would result in a maximum of 250-300 m of rock uplift, assuming Airy isostasy. 3 and 6). Reconstructing The Transition From Laramide Contraction To Rio Grande PDF Kinematics Analysis of Laramide Deformation - Tdl 19). Locally, this zone of breccia and gouge is 510 m wide. The dominant feature for most of Laramide time was the COMB, which trends nearly parallel to Farallon-North America motion . This style of deformation is typical of continental plates adjacent to convergent margins of long duration that have not sustained continent/continent collisions. Foliated granite has aligned biotite and elongated quartz grains. By late Miocene, modern basins began to accumulate sediment that is flat or gently dipping (Scarborough and Peirce, 1978). South of Smith Wash (Fig. West of Jim Thomas Wash (Fig. The amount (and rate) of rock uplift of individual Laramide ranges was less than 2.4-4.8 km (~0.21-0.32 mm/yr) during the early Maastrichtian-Paleocene and increased to more than ~3 km (~0.38-0.60 mm/yr) during the late Paleocene-early Eocene. Supplemental Text (see footnote 1), Part 2, contains further explanation of reconstruction methods. You can contribute this audio pronunciation of lampyridae to HowToPronounce dictionary. laram (line addressable ram) sound - laram (line addressable ram (2010) attributed the observed 90 of eastward tilting to be the result of multiple sets of down-to-the-west nearly planar normal faults, with one set of down-to-the-east faults. Our Mineral Museum Positions of geologic measurements, sample sites, and photographs were acquired using a Garmin GPSMAP 64s. This particular gap may have occurred because the subducted slab was in contact with relatively cool continental lithosphere, not hotter asthenosphere. No synextensional deposits appear to be directly related to this fault set. Sericitic alteration within the field area is characterized by quartz-pyrite veins with sericitic envelopes that are clearly related to Smith Granodiorite porphyry dikes that are of Laramide age. Locations where both the timing of porphyry deposit formation and reverse faulting are known are few. Shear zones and associated foliation are found together within the Horse Hills, but foliated rocks without associated shear zones persist at least 1.5 km to the south and 3 km to the west of the Horse Hills (Fig. Average modern dips of each fault generation and modern range of dips for synextensional formations are given. You can try again. Laramide Resources Ltd. is a Canada-based company with mineral resource projects strategically positioned to deliver uranium for clean nuclear power to meet the electricity needs. 5) brackets the Romero Wash fault to a minimum age of 65.9 0.7 Ma (U-Pb zircon). At Bee Wash, the Romero Wash fault and Bee Wash fault presently dip 60E (Fig. Rare quartz veinlets occur in clasts of the breccia. Primary faults within set 5 include the Smith Wash and Lopez Ranch faults. Geologic map of the Romero Wash area. Image is facing N60E. Late Cretaceous-early Eocene Laramide uplift, exhumation, and basin Romero Wash fault system. Some fault segments solely involving Ruin Granite were partially mapped in ArcGIS using satellite imagery where fault gouge was apparent. The southern end of the syncline plunges gently to the north, whereas the northern end, which is beyond the study area, plunges to the south. Evidence for this includes hanging wall flat-footwall ramp geometries, relatively low footwall cut-off angles (<30), and transposed Cretaceous strata that suggest burial under a thick thrust sheet. Projected locations of measured bedding attitudes are shown near the surface. It was chosen for dating to determine the age of the Romero Wash fault. Until there are more examples of these relationships, the dominant patterns remain elusive. Announces Results from the Diamond Drilling Program at its Crownpoint-Churchrock Uranium Project, New Mexico, U.S.A. Newswire.ca - Fri Mar 24, 6:30AM CDT /CNW/ - Laramide Resources Ltd. ("Laramide" or the "Company") (TSX: LAM) (ASX: LAM) (OTCQX: LMRXF) is pleased to announce completion of the initial diamond. This is a reasonable interpretation for the study area because all synextensional sedimentary rocks are expected to be east-dipping due to tilting on down-to-the-west normal faults, and any drape folds that would form on down-to-the-west faults would tilt strata westward. Mountains, Old and New - U.S. National Park Service We recommend you to try Safari. The reconstruction presented here closely resembles Proffetts (1977) reconstruction of the Yerington district, Nevada, where rocks had been rotated steeply westward by multiple sets of crosscutting normal faults. The fifth generation of Cenozoic normal faults is ignored because these faults do not intersect the line of section AA. Log in or Can you pronounce this word better or pronounce in different accent or variation ? This website uses cookies so that we can provide you with the best user experience possible. Locations of geologic contacts were determined and recorded using a topographic map with a contour interval of 30 m and a custom GPS grid array. Reverse fault tip shown as red dot, and area of tri-shear deformation defined by dashed red lines. 3). The fault cuts a dacite porphyry dike and an unclassified intermediate to felsic dike that had intruded Apache Group strata in the hanging wall (Fig. In addition, the restoration provides estimates of the amount of offset for Cenozoic and Laramide faults that lack exposures of offset markers (Tables 3 and 4). Weighted mean diagram for U-Pb dates. A-1, in Damon, P.E., Correlation and chronology of ore deposits and volcanic rocks, Annual Progress Report no. The implicit component of interpretation to classify structures here is analogous to using an overturned bedding symbol on an outcrop that lacks a facing indicator but confidently can be considered overturned because of broader-scale geologic relationships. Uncertainties of 1.5 for 206Pb/204Pb and 0.3 for 207Pb/204Pb are applied to these compositional values based on the variation in Pb isotopic composition in modern crystal rocks. An exception to this is the second generation of faults (Table 3); not one example of this generation of faults crops out in the study area (discussed below). We recommend you to try Safari. Three locales in Arizona contain evidence for such relationships, and they are all located within 50 km of the study area (Fig. Thus the regional reconstruction shown here is not unique; nonetheless, it provides a testable hypothesis. Another possible example of thin-skinned deformation is the Walnut Canyon thrust (Richard and Spencer, 1998a, 1998b), located near Ray (Fig. Nearby major copper districts include Ray, Superior, Globe-Miami, Christmas, and San ManuelKalamazoo (Fig. 3, p. 854875, https://doi.org/10.1130/GES02324.1. Laramide Orogenesis Driven by Late Cretaceous Weakening of the North Rate the pronunciation difficulty of Laramide orogeny. Laramide's flagship, the Westmoreland Uranium Project, is located in Queensland, Australia, adjacent to the Northern Territory border. Similar features in the Sierras Pampeanas in Argentina are forming above a zone of shallow-angle subduction, suggesting a similar process may have occurred beneath western North America during the Late Cretaceous. Finally, two-mica granites were emplaced from the late Laramide to the mid-Cenozoic (e.g., Gehrels and Smith, 1991; Fornash et al., 2013). Because the only other known period of pre-Cenozoic deformation within the region occurred during the early Mesoproterozoic, and the Romero Wash and Tecolote faults cut late Mesoproterozoic diabase, these faults are inferred to be of Laramide age. The Romero Wash fault is interpreted to be a backthrust to the Tecolote fault, with opposing vergence and 0.75 km of displacement. The greater areal distribution and earlier timing of northern Laramide deformation provides new constraints on the shape, timing, and path of entry of the flat slab (with or without a . 10), suggesting that there is no folding hereonly tilting. Dickinson (1991) proposed that this fault may correlate with a similar structure to the southeast, near the mouth of Aravaipa Creek (Young et al., 2009). Only results for spots within the tips of zircon grains are shown for sample Ksg-p. MSWDmean square of weighted deviates. 5). Because the Romero Diorite is brecciated along its western contact, which is the Romero Wash fault surface, the unit is interpreted to have intruded between slip events on the fault. [4], During the Laramide orogeny, basin floors and mountain summits were much closer to sea level than today. 3). In-run analysis of fragments of a large zircon crystal (generally every fifth measurement) with known age of 563.5 3.2 Ma (2-sigma error) is used to correct for this fractionation. This generation includes all faults from set 4 (Table 3). A barren porphyry dike (65.9 0.7 Ma, U-Pb zircon) cuts the Romero Wash fault, limiting the upper age of the fault. Start Free Trial Have a better pronunciation ? 3 and 6). Mark Barton, Roy Johnson, Jason Mizer, and Simone Runyon are thanked for their geologic insights, Steve Lingrey for feedback on reconstructions, and Kojo Plange for his assistance in interpreting U-Pb results. 9A and 5). The presence of multiple generations of Cenozoic normal faults, with large amounts of net tilting (90E), produces complications in interpreting earlier deformation. 5 and 16), a barren Smith Granodiorite porphyry crosscuts the Romero Wash fault. U-Pb ages were obtained from microanalysis of zircons by the laser ablationinductively coupled plasmamass spectrometry (LA-ICP-MS) method at the University of Arizona.

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