Antler orogeny

Later tec- tonic events that helped shape the basin include the late Devonian-early Mississippian Antler orogeny, the Pennsylvanian-Permian Ancestral Rockies orogeny, the Cretaceous Sevier orogeny ...

It is believed that the duration of deposition of the Trenton Group was approximately 4 to 5 million years. The following discussion briefly considers the record of tectonic activity in relation to Trenton Group deposits. The primary goal is to familiarize the reader with the concept of the Taconic Orogeny and the sedimentary signatures of this ...It is believed that the duration of deposition of the Trenton Group was approximately 4 to 5 million years. The following discussion briefly considers the record of tectonic activity in relation to Trenton Group deposits. The primary goal is to familiarize the reader with the concept of the Taconic Orogeny and the sedimentary signatures of this ...of crust associated with east-dipping subduction (Antler orogeny) formed a north–south trending foredeep, slope, and platform collectively called the Antler foreland in the United States and the Prophet trough in Canada (Fuentes and others, 2012; Beranek and others, 2016). An extensive west-dipping carbonate ramp formedIn this image we see folded carbonates that were deposited west of the Antler Orogeny at the same time that that deformation was occurring. This suggests that there was no major continental or island arc collision that created the Antler Orogeny. Image courtesy of Professor Burchfiel.The Antler orogeny occurred in Mississippian time at a passive margin of the sialic North American continent in Nevada and probably in Idaho.This phase of miogeoclinal development was brought to a close by the Late Devonian-Early Mississippian Antler orogeny, during the final phase of which oceanic rocks were emplaced onto the ...

Burial associated with the emplacement of the Roberts Mountain Allochthon during the Antler orogeny caused thermal maturation of organic matter in the underlying rocks (Gize et al. 2000). Consequently, carbonaceous Sedex ores generated petroleum, which mobilized and dispersed Au and some Sedex metals in rocks that host Carlin-type deposits ...The Antler orogeny was a Devonian-Mississippian (375-320 Ma) mountain building event that occurred along the western Laurentian margin. The initiation of the Antler orogeny is marked by the emplacement of the Roberts Mountain Allochthon (RMA) that thrust Cambrian-Devonian deep water marine siliciclastic rocks 100 km eastward onto the western Laurentian margin. The Antler Orogeny and the First Suspect Terrane: Middle Devonian to Late Pennsylvanian: Ca. 400-300 Ma. DOI: Authors: Ronald C. Blakey. Wayne Ranney. Independent. Abstract and Figures.Three Devonian pulses of the Antler orogeny are better documented in the chapter on the Bisoni-McKay area. Here, the first Antler pulse in latest Middle Devonian time is obscured within an ~9 m.y. hiatus enlarged by excavation of the Alamo impact crater. The second Antler pulse is recorded by the ~4 m.y. hiatus produced by the regional ...The Antler orogeny occurred in the Mississippian passive margin of the sialic North American continent in Nevada and probably in Idaho (Speed and Sleep, 1982). Speed and Sleep (1982) proposed an Arc-continent collision model for the Antler orogeny. Taconic Orogeny P Flag question b. Caledonian Orogeny c. Acadian Orogeny d. Antler Orogeny Question 2 Not yet The Orogeny occurred along the Cordilleran of the North America and is characterized by subduction and thrust faulting. answered Points out of 1.00 P Flag question Select one: a. Taconic Orogeny b. Caledonian Orogeny c. Acadian Orogeny d.In this image we see where early Pennsylvanian sediments were deposited over the eroded interior of the mountains of the Antler Orogeny. This suggests that the topography created by the Antler was eroded to low relief that the Antler Orogeny was complete by the early Pennsylvanian. Image courtesy of Professor Burchfiel.

The Antler Orogeny and the First Suspect Terrane: Middle Devonian to Late Pennsylvanian: Ca. 400-300 Ma. Ronald C. Blakey, Wayne D. Ranney; Pages 73-82. The Amalgamation of Pangaea and the Sonoma Orogeny: Early Permian to Early Triassic - Ca. 300-240 Ma.Antler Orogeny; collision of western Laurentia with a volcanic island arc. Silurian Period: 444 to 419 Ma. Named for the Silures, an ancient Celtic tribe that lived in what is now Wales, United Kingdom. Fossil Record: Famous fossil Lagerstätte: Waukesha Biota (near Milwaukee, WI).During the Proterozoic, we can find two examples of Precambrian rock in the Grand Canyon. What is the name of the younger rock. Grand Canyon Supergroup. Inland seas that cover continents are called: epicontinental seaways. The Grenville orogeny is associated with the formation of: (supercontinent) Rodinia.the late Devonian and (or) early Mississippian Antler orogeny, and the other during the latest Permian and (or) early Triassic Sonoma orogeny (Roberts and others, 1958; Silberling and Roberts, 1962; Roberts, 1964). The former accreted terrane includes the allochthon of the Robertstal thrust of the Antler orogeny, the Roberts Mountains . thrust, was active in latest Devonian to earliest Mississip-pian, emplaced subparallel to and about 300 km west of .Nevadan orogeny, mountain-building event in western North America that started in the Late Jurassic Epoch about 156 million years ago. This event is generally considered to be the first significant phase of Cordilleran mountain building, which continued into the Early Cretaceous Epoch. The name is.

Homecoming ku 2022.

Rodinia. First known supercontinent formed during the movement of continents during the Mesoproterozoic Era. Pannotia. Second pangea-like continent formed around 650 million years ago after Rodinia. Craton 193. Name applied to a stable nucleus of a continent, consisting of a Precambrian shield and a platform of buried ancient rocks. Description . Near Bowman Lake, the greenschist facies Carboniferous Peale chert forms a moderately E-dipping, NW-trending homocline that is the record of the transition from the Devonian and Early Mississippian Antler Orogeny to the Permian and Triassic Sonoman Orogeny. A possible young analog for the Antler Orogeny. Caption: A possible young analog for the Antler Orogeny. Credit: Image courtesy of Professor Burchfiel. Course Info Instructors Ben Crosby; Prof. B. Clark Burchfiel; Departments Earth, Atmospheric, and Planetary Sciences; As Taught In ...Following the Antler orogeny, uplifted parts of the arc, forearc, and accretionary prism (Roberts Mountains allochthon) eroded, cooled, subsided, and were buried as the new continental margin regained isostatic equilibrium (Dickinson, 1981a,b, 2000; Speed and Sleep, 1982; Ingersoll, 1997) (Fig. 4 C and D).

Mississippian (Antler orogeny, Roberts et al., 1958; Speed, 1982,1983), and the Permian-Triassic (Sonoma orogeny, Sllberling and Roberts, 1962; Speed, 1979,1982,1983) (Figs. 4,5,12). During the Antler orogeny the Roberts Moun­ tains allochthon oceanic rocks were thrust eastward at least 100 km over the continental slope and platform margin ...The distribution of the hydrocarbon fields put in evidence the presence of gas fields in western sector and oil fields in the eastern part. Algeria has around 12.2 billion barrels of proved oil ...Jan 1, 2019 · During the Late Devonian or Mississippian, the east-facing Antler arc approached the western margin, and collided with the Cordilleran miogeocline (Chapter 11; Fig. 13). There is some evidence that the Antler Orogeny affected areas as far north as British Columbia (Chapter 5). Distal, passive-margin, deep-water deposits were thrust eastward ... Antler orogeny. a Late Devonian to Mississippian episode of mountain building that affected the Cordilleran mobile belt; was caused by subduction, resulting in deep water deposits and oceanic crustal rocks being thrust eastward over shallow water continental shelf sediments, thus closing the narrow ocean basin that seperated the island arc from ...The first phase of regional plutonism started 210 million years ago in the late Triassic and continued throughout the Jurassic to about 150 million years BP. Also starting 150 million years ago was an increase in the westward drift rate of the North American Plate.The resulting orogeny (mountain-building event) is called the Nevadan orogeny by geologists.Oct 1993. David Rhys. The Snip mine consists of an auriferous southwest-dipping shear vein system in a north-dipping Triassic greywacke-siltstone sequence altered with abundant veinlet and ...The Alleghanian orogeny or Appalachian orogeny is one of the geological mountain -forming events that formed the Appalachian Mountains and Allegheny Mountains. The term and spelling Alleghany orogeny was originally proposed by H.P. Woodward in 1957. The Alleghanian orogeny occurred approximately 325 million to 260 million years ago [1] over at ... The Late Devonian-Early Carboniferous (DC) Antler orogeny in southwestern Laurentia is contemporaneous with influx of clastic sediments, unconformities, and volcanism across much of western ...eny overprinted the Antler orogenic and Pennsylvanian structures (Trexler and others, 2004; Dickinson, 2006). During the Sonoma orogeny, the Golconda allochthon was emplaced via the Golconda and associated thrusts, overlapping the western Antler allochthon. This emplace-ment was a consequence of compression as Permian arcThis phase was terminated by the Antler orogeny (IIa) in Late Devonian through Middle Pennsylvanian time. Clastic debris from the Antler belt was shed westward during late Paleozoic time into flanking eugeosynclinal troughs and eastward into epicontinental troughs; deposition in the western trough was terminated by the Sonoma orogeny (IIb) of ...

The result contributes to the tectonic model for the Antler orogeny and the evolution of western Laurentia. 2. Mid-Paleozoic Tectonostratigraphic Framework of Western Laurentia 2.1. Initiation of Active Plate Margin in Western Laurentia In Alaska and British Columbia, the initiation of subduction and subsequent terrane accretion along the wes-

By ~350ma, we find sediments overlapping the Antler Orogeny, suggesting that it had been significantly eroded. The dates in this figure are old, and though we do not need to know the exact numbers right now, it is important to think about the different forms of geologic evidence available for constraining when certain events happened.The Antler Orogeny was the result of this island arc collision. The extent of this initial orogenic event of western Euramerica is unknown because both the north and south margins have been removed or obliterated by younger tectonic processes. The orogeny developed in several phases: 1. Folding and thrust-faulting occurred as the eastern part ...A study of the sedimentary rocks within the Antler and Sonoma Orogenic belt in northern Nevada, with mapping and analysis of the Scott Canyon and Harmony formations. The study challenges the …A great volume of Mississippian orogenic deposits supports the concept of a mid-Paleozoic orogeny in Nevada, and the existence and timing of that event are not questioned here. The nature of the orogeny is problematic, however, and new ideas are called for. The cause of the Antler orogeny, long ascribed to plate convergence, is here attributed to left-lateral …late Carboniferous Antler Orogeny. Alternatively, the near-surface karsti fi cation was Antler, followed by hydrothermal karsti fi cation with deep burial during Midd leQuestion: COLUMNA COLUMN B lone choice below has no matching words at left Catskill Clastic Wedge A. large, round, depression located north of Ohio--began in Silurian--contains evaporites B. volcanic island arc off NW margin of North America--involved in the Antler Orogeny Cincinnati Arch C. huge clastic wedge that began to form in Europe during the Caledonian OrogenyThe Antler orogeny resulted from late Middle Mississippian sinistral-oblique convergence at this step. Continuing oblique convergence produced the subsequent late Paleozoic basins, structures, and ...

Ks customer service center.

Tv basketball schedule.

Orogeny, Sevier Orogeny and Laramide Orogeny. Antler Orogeny: Antler orogeny began in late Devonian (419 Ma) and spread into Early Pennsylvanian (Upper part of Carboniferous). Great volume of conglomerate beds got deposited during this orogeny. But the most important thing about this orogeny is that,Antler Orogeny‎ (3 C, 1 F) Appalachian Orogeny‎ (2 C, 2 F) F. Flysch‎ (8 C, 1 P, 10 F) G. Grampian Orogeny‎ (3 C) ... Media in category "Orogeny" The following 71 files are in this category, out of 71 total. 100 global.png 737 × 736; 109 KB. 1000-750Ma NQT.png 1,057 × …The result contributes to the tectonic model for the Antler orogeny and the evolution of western Laurentia. 2. Mid-Paleozoic Tectonostratigraphic Framework of Western Laurentia 2.1. Initiation of Active Plate Margin in Western Laurentia In Alaska and British Columbia, the initiation of subduction and subsequent terrane accretion along the wes-The Antler orogeny was a volcanic island arc that was accreted onto western North America with the subduction direction away from North America. This created a mountain range on the west coast of North American called the Antler highlands and was the first part of building the land in the west that would eventually make most of California ...Following the Antler orogeny, uplifted parts of the arc, forearc, and accretionary prism (Roberts Mountains allochthon) eroded, cooled, subsided, and were buried as the new continental margin regained isostatic equilibrium (Dickinson, 1981a,b, 2000; Speed and Sleep, 1982; Ingersoll, 1997) (Fig. 4 C and D). this collisional tectonic event closed the ocean that separated laurentia and baltica. acadian orogeny. avalonia and southeastern margin of laurasia. antler orogeny. early mississippian the passive western margin of laurentia was affected by. Study with Quizlet and memorize flashcards containing terms like Paleogeography, end, no and more.Smith et al. (1993) postulated, however, that the Antler orogen of central Nevada and southern Idaho extended to the north, and that the Late Devonian and Mississippian extensional setting in the Canadian Cordillera is the expression of “foreland flexural extension” east of the advancing orogen.The Antler orogeny was a Devonian-Mississippian (375-320 Ma) mountain building event that occurred along the western Laurentian margin. The initiation of the Antler orogeny is marked by the emplacement of the Roberts Mountain Allochthon (RMA) that thrust Cambrian-Devonian deep water marine siliciclastic rocks 100 km eastward onto the western Laurentian margin.This structural relationship, subsequently mapped in other mountain ranges, is the primary record of the Late Devonian to Early Mississippian Antler Orogeny, the first major orogenic event to affect the Cordilleran margin of Laurentia in the Paleozoic.The collision generated a significant orogeny across Western Canada that is equivalent to the Sonoman Orogeny in the US. The subduction zone and arc in S Ca and W Az and into Mexico marks the ... ….

Antler orogeny, a mountain-building event in Late Devonian and Mississippian time (about 340 to 370 million years ago) that affected a linear belt in the Cordilleran Geosyncline, extending from the California–Nevada border northward through the central part of Nevada into Idaho. The term Antler The Appalachians are a Paleozoic orogen that formed in a complete Wilson cycle along the eastern Laurentian margin following the breakup of supercontinent Rodinia and the coalescence of all of the continents to form supercontinent Pangea. The Appalachian Wilson cycle began by formation of a Neoproterozoic to early Paleozoic rifted margin and ...the contractional Antler orogeny of east-central Nevada. (3) The entire mid-Late Mississippian to early Early Permian phase of basin evolution is correlated with the transtensionaK?) Hum- boldt orogeny of Nevada. The ancestral Rocky Mountain orog­ eny, driven by the distant collision of the Gondwana andThe Antler orogeny dominated late Paleozoic tectonics of Nevada, western Utah, and Idaho, but had less appreciated effects farther east. From Cambrian through Middle Devonian time, the western ... Antler Orogeny. Collisional tectonic event that impacted the passive western margin of Laurentia. clastic wedges. provide evidence for orogenic events. ... Alleghenian Orogeny. Mountain-building event that occurred when the part of Gondwana that is now Africa began to collide with Laurasia during the Late Pennsylvanian.Passive margin sedimentation ended in Late Devonian time when Cambrian through Devonian oceanic rocks of the Roberts Mountains allochthon were thrust onto the continental shelf during the Antler Orogeny, best documented in north-central Nevada. Slope-and-rise sedimentary rocks and seafloor mafic volcanic rocks were thrust upon coeval, shallow ...Sonoma orogeny, an orogenic event that affected the eugeosynclinal (deepwater) portion of the Cordilleran Geosyncline in northwestern Nevada occurring between Middle Permian and Early Triassic times (270 million to 245 million years ago). Evidence for the orogeny consists of an angular unconformity between Late Permian volcanics and older rocks, and a thrust fault, the Golconda Thrust, that ...The complex structural features include (1) a middle to late Paleozoic thrust belt (Antler orogenic belt, Golconda thrust, Sonoma thrust) extending across south -central and northeastern Nevada into south - ... development of the Antler Orogeny in Late Devonian and Early Mississippian time, with folding, faulting, and eastward thrusting of ...Question: What was the polarity of subdcution during the first, Antler Orogeny? Recall that subduction polarity refers to direction of subduction of the oceanic plate. A) normal polarity subuction B) reverse polarity subduction.FIGURE 11-33 (p. 325) The Antler Orogeny provided the highland source areas for accumulation of thick sequences of the clastic sediment depicted in the cross section. FIGURE 11-37 (p. 326) Phosphates are extensively used as fertilizers that are essential to the production of a quantity of food sufficient to feed the Earth's expanding ... Antler orogeny, The Alleghanian orogeny or Appalachian orogeny is one of the geological mountain -forming events that formed the Appalachian Mountains and Allegheny Mountains. The term and spelling Alleghany orogeny was originally proposed by H.P. Woodward in 1957. The Alleghanian orogeny occurred approximately 325 million to 260 million years ago [1] over at ..., The sequence was subjected to another orogenic event in the late Permian to lower Triassic, the Sonoma Orogeny, which resulted in the further eastward transport of western siliceous rocks over both the eastern carbonate assemblage and the post Antler overlap assemblage. This thrusting was over the Golconda Thrust, the main trace of which ..., Alleghenian orogeny, mountain-building event, occurring almost entirely within the Permian Period (299 million to 251 million years ago), that created the Appalachian Mountains. The Alleghenian orogeny resulted from the collision of the central and southern Appalachian continental margin of North., The Antler orogeny occurred in the Mississippian passive margin of the sialic North American continent in Nevada and probably in Idaho (Speed and Sleep, 1982). Speed and Sleep (1982) proposed an Arc-continent collision model for the Antler orogeny. , The Antler orogeny was not characterized by obduction of the Roberts Mountains allochthon; rocks composing the “allochthon” essentially were deposited in situ. Instead, the orogeny was characterized by appearance of an elongate north-northeast-trending uplift through central Nevada and by two parallel flanking depressions., The Antler orogeny is a bit of a puzzle for geologists, as the small orogeny has several possible causes, including a collision between the North American plate and an island arc. However, evidence exists that the cause could be a …, The Antler orogeny is a bit of a puzzle for geologists, as the small orogeny has several possible causes, including a collision between the North American plate and an island arc. However, evidence exists that the cause could be a …, Antler Orogeny (Devonian) Today . Mesozoic Tectonics . A) The Triassic . B) The Jurassic . C) The Cretaceous (web notes 31) Mesozoic Tectonics . The separation of Gondwanna and Laurentia began in the Triassic. Initial flooding of the "Atlantic Ocean" began in the Jurassic., 16 terms · Cambrian → Passive, Ordovician → Taconic Orogeny, Silurian → Acadian orogeny, Devonian → Antler Orogeny (end), Acadian, Mississippian → Antler Orogeny, Pennsylvanian → Alleghenian and Ural Orogeny, Permian → Sonoman (end), Marathon, Alleg…, Mississippian Subperiod, first major subdivision of the Carboniferous Period, lasting from 358.9 to 323.2 million years ago.The Mississippian is characterized by shallow-water limestone deposits occupying the interiors of continents, especially in the Northern Hemisphere. These limestones exhibit a change from calcite-dominated grains and …, The Antler orogeny is a mountain-building episode that is named for Antler Peak, at Battle Mountain, Nevada. The orogeny extensively deformed Paleozoic rocks of the Great Basin in Nevada and western Utah during Late Devonian and Early Mississippian time. In the late Devonian, the Antler volcanic island arc terrane collided with what was then ..., You should switch 3 and 4, Since Antler Orogeny is older than Acadian Orogeny. So Antler Orogeny becomes no.3 and Acadian Orogeny becomes no.4. Therefore, the table should look as below:, A lower Paleozoic sequence on the east was thrust 95 km over the miogeosynclinal rocks during the Antler Orogeny of mid-Paleozoic time. A younger Paleozoic sequence farther west was similarly thrust eastward during the Sonoma Orogeny near the end of the Paleozoic. Other Paleozoic and Mesozoic rocks occur in the Sierra Nevada and Klamath ..., The Antler family name was found in the USA, the UK, and Scotland between 1871 and 1920. The most Antler families were found in USA in 1920. In 1880 there were 10 Antler families living in New York. This was about 77% of all the recorded Antler's in USA. New York had the highest population of Antler families in 1880., High-resolution stratigraphic studies in the Diamond Mountains are revealing details of tectonic deformation and basin filling that post-date the emplacement of the Antler allochthon and predate the Sonoma orogeny. Antler foreland-basin strata were deformed, uplifted, and eroded in the middle Mississippian, and a late Mississippian successor ..., PDF | On Jan 1, 2015, Forrest G. Poole and others published Unusual Central Nevada Geologic Terranes Produced by Late Devonian Antler Orogeny and Alamo Impact | Find, read and cite all the ..., Antler Orogeny Ancestral Rockies Orogeny Nevadan Orogeny Sevier Orogeny Laramide Orogeny Tectonic Setting Stratigraphy and Orogenic Events Pliocene Miocene Oligocene Eocene Paleocene Triassic Permian Pennsylvanian Mississippian Precambrian Devonian Silurian Ordovician Cambrian c i o z o n e C c i o z o s e M c i o z o e l a P Paleogene Neog ..., The Antler orogeny model proposes that cycles of shallow burial and near-surface emergence of the Middle Devonian barrier reef during Late Devonian resulted in parallel dissolution trends by circulation of meteoric groundwaters as shallow aquifers (Kyle 1981; Krebs and Macqueen 1984). A major stage of karstification occurred when the barrier ..., Laurasia (/ l ɔː ˈ r eɪ ʒ ə,-ʃ i ə /) was the more northern of two large landmasses that formed part of the Pangaea supercontinent from around ), the other being Gondwana.It separated from Gondwana (beginning in the late Triassic period) during the breakup of Pangaea, drifting farther north after the split and finally broke apart with the opening of the North …, a. the Antler orogeny b. subduction of the North American plate beneath the Farallon plate c. the Sonoma orogeny d. subduction of the Farallon plate beneath North American plate e. the separation of North America from Baltica. Kathe. June 10, 2016, 08:08:28 PM #1; Answer; d Staci., The Antler Orogeny and the First Suspect Terrane: Middle Devonian to Late Pennsylvanian: Ca. 400-300 Ma. Chapter. Full-text available. Jan 2018; Ronald C. Blakey; Wayne Ranney;, Etymology The Santa Fe Mountains at the southern end of the Rockies as seen from the Sandia Crest in New Mexico The summits of the Teton Range in Wyoming. The name of the mountains is a translation of an Amerindian Algonquian name, specifically Cree ᐊᓯᐣᐘᑎ asin-wati (originally transcribed as-sin-wati), literally "rocky mountain".The first mention of their present name by a European ..., Terms in this set (45) Taconic orogeny. An Ordovician episode of mountain building resulting in deformation of the Appalachian mobile belt. Acadian Orogeny. Tectonic event in which Avalonia collided with the southeastern margin of Laurasia and added faults, folds, and igneous intrusions to the rocks of the Taconic Orogeny. Antler Orogeny., The Antler orogeny was an enigmatic tectonic event, that began in the early Late Devonian with widespread effects continuing into the Mississippian and early Pennsylvanian.Most of the evidence for this event is in Nevada but the limits of its reach are unknown. A great volume of conglomeratic deposits of mainly Mississippian age in Nevada and adjacent areas testifies …, In the area of the classic Antler Orogeny, two assemblages are identified that are contemporaneous: a thinner eastern section containing passive margin, fossiliferous …, During Late Devonian through Middle Mississippian time, eastward-directed compressional tectonism associated with the Antler orogeny resulted in regional scale folding and imbricate thrusting of the western eugeoclinal assemblage of predominantly siliciclastic rocks, over the eastern autochthonous assemblage of silty carbonate rocks (Roberts et ..., The Antler Orogeny (Late Devonian - Mississippian) Collision of the Klamath island arc (now part of Nevada, but previously a separate island system) with Laurentia Towards end of Devonian, CO 2 levels begin to drop: Phanerozoic maximum during Cambro-Ordovician, Moose activities include finding out what it's like to be a moose and making a moose balloon animal. Learn more about moose activities for kids. Advertisement Did you know that a male moose can weigh as much as 1,200 pounds? Or that a moose..., Antler Orogeny (W) Silurian. Ordovician. Taconic Orogeny* (NE) Cambrian. Other Laurentian Orogenies . Period. North America: Permian. Alleghenian Orogeny* (SE) Pensylvannian. Mississippian: Ouachita Orogeny (S) Devonian. Acadian Orogeny* (E) Antler Orogeny (W) Silurian. Ordovician: Taconic Orogeny* (NE), The Sevier Orogeny is associated with east-vergent, mostly thin-skinned fold and thrust belts. Across Utah, Nevada, and Arizona, it is possible to see ..., The disconformity represents the Antler orogeny. Study Area. Publication type: Report: Publication Subtype: USGS Numbered Series: Title: Stratigraphy of lower to middle Paleozoic rocks of northern Nevada and the Antler orogeny: Series title: Professional Paper: Series number: 1799: DOI: 10.3133/pp1799: Year Published: 2013: Language:, The Sonoma orogeny was a period of mountain building in western North America. The exact age and structure of the Sonoma orogeny is controversial. [1] [2] [3] The orogeny is generally thought to have occurred during the Permian / Triassic transition, around 250 million years ago, following the Late Devonian Antler orogeny., 16 terms · Cambrian → Passive, Ordovician → Taconic Orogeny, Silurian → Acadian orogeny, Devonian → Antler Orogeny (end), Acadian, Mississippian → Antler Orogeny, Pennsylvanian → Alleghenian and Ural Orogeny, Permian → Sonoman (end), Marathon, Alleg…