Cratonic sequence

Study with Quizlet and memorize flashcards containing terms like The Alleghenian and Ouachita orogenies were events in the final assembly of the supercontinent called, During Ordovician, extensive evaporite deposits were forming in the Michigan Basin., Tillite and glacial striations over large areas of Gondwana (South America, Africa, Australia) indicate continental glaciation during Late ...

Cratonic sequence. the sauk sequence. - rocks of the sauk sequence record the first major transgression onto the North American craton. - during the middle cambrian, the transgressive phase of the sauk began with the epeiric seas encroaching over the craton. - by the late cambrian, the eperic seas had covered most of north america. the tippecanoe sequence.

The Jurassic rock unit called the Sundance Formation is made up of marine shales and limestone. Which of the following is a likely explanation of how it formed? a. A volcanic eruption. b. Through orogenic activity. c. As part of a cratonic sequence. d.

The sedimentary rock record of the North American craton can be divided into six cratonic sequences. The transgressive phase of each sequence is generally _____ preserved, whereas the regressive phase is marked by _____ ... The primary rock types found in the Kaskaskia Sequence are _____ , which indicate that _____ environments were common ...velopment of cratonic sequences. Phanerozoic subduction around the margins of the North American craton can be broadly subdivided into two episodes: an early Paleozoic episode related to closure of the Iapetus ocean, and a more prolonged late Paleozoic to Cenozoic episode involving subduction of the eastern Pa-cific and Farallon plates.the major cratonic sequences of the Early Paleozoic ¨ the importance of transgressions and regressions in the cratonic history of North America, especially as seen at the Grand Canyon ¨ the major events of the Sauk sequence ¨ the major events of the Tippecanoe sequence, with an emphasis on modern and ancient reefs and evaporites31. What is the Wilson Cycle?a. The cyclical opening and closing of ocean basins caused by movement of the earth's plates.b. The interrelated sequence of events by which rocks are initially formed, altered, destroyed, and reformed as a result of magmatism, erosion, sedimentation, and metamorphism c.The cycle of evaporation and condensation that controls the distribution of the earth's water as ...Cratonic Sequence 3 (Kaskaskia) can be identified by the presence of the basal: Oriskany Sandstone in New York Stat. The most useful criteria to distinguish deposits of Cratonic Sequence 3 (Kaskaskia) from Cratonic Sequence 2 (Tippecanoe) on the craton would include: a. fossil assemblagesand formed the foundation of the continents. Shields. The major cratonic structures. and mobile belts of North America; that formed during the Paleozoic Era.b) abiogenesis. The ancient, stable part of a continent made up of a shield and platform is called a. c) craton. Photochemical dissociation is a process whereby. e) water molecules are disrupted to yield hydrogen and oxygen. Stromatolites are produced by cyanobacteria which is. a) blue-green algae. Granite-gneiss complexes are.

Geo Exam 3 Questions. CH10#2 What Geologic evidence indicates that the transcontinental Arch was above sea level during most of the early Paleozoic? The transcontinental arch is an uplifted region from Arizona toward Lake Superior. Cambrian marine sediment on either side and no marine sediment lay on top suggesting evidence that it was above ...Abstract. The Sauk sequence includes all rocks of the Cambrian System and the Canadian Series (Lower Ordovician). These strata occur above the unconformity at tThe Tippecanoe sequence was the cratonic sequence --that is, the marine transgression --that followed the Sauk sequence; it extended from roughly the Middle Ordovician to the …1. Cambrian cratonic sandstone ranks among the most mature in the world. 2. Erosion of the cratonic surface over the previous half a billion years created a huge volume of clastic material available for redistribution by wind, rivers and the invading shallow seas. 3.The Herbridean craton (Lewisian complex) makes up a significant proportion of the NW Foreland. Outline, giving evidence, the sequence of events that formed this craton during the 3.0 to 1.7 Ga period? What was deposited above the cratonic sequence and how are they related to it?Sequence of Strata and Disconformities in the Older Pennsylvanian Section in Oklahoma and Kansas. Following is a brief discussion of the rock sequence that embraces the beds of the Marmaton group. Table 1 shows the classification of the Pennsylvanian rocks in the northern Mid-Continent region. Table 2 gives the classification of the Marmaton group.cratonic sequences, however, strongly argues against correlating the Albaka sequence with either the Penganga or the Somanpalli sequence. It is now well ...

Cratonic stratigraphy of the Kaskaskian Sequence is complicated by a number of basins and uplifts which were active, but not in concert with each other, at the same time that true, eustatic sea-level changes were occurring (Fig. 6-1).View Historical Geology-Chapter 10.docx from GEOL MISC at Nicholls State University. Historical Geology-Chapter 10 Pretest 1. The world's first geologic map was compiled by William Smith and depicted责任者:"McLaughlin ; Patrick Ian." 出版日期:2006. 语种:eng; 页数:1 v. : 分类号:374.1; ISBN:9780542673580(ebk.) : MARC全文.The cyclothem is defined as a series of beds deposited during a single sedimentary cycle. Several “ideal” cyclothems have been defined (Kosanke et al., 1960; Weller, 1931), but, in a top-down sequence, they basically consist of shale, limestone, shale, coal, underclay, limestone, shale, and sandstone. The ideal cyclothem is typically ...How does a cratonic sequence form? Sea level rising and then falling, thereby depositing layers of sediment onto an area of ancient rock called a craton. Each one represents a time when epeiric seas deposited sediments across the craton, while the upper and lower edges of the sequence are bounded by craton-wide unconformities eroded when the ...

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A major transgressive-regressive cycle bounded by craton-wide unconformities is a(n) cratonic sequence . cratonic sequence. 5. An elongated area marking the site of mountain building is a(n) mobile belt . mobile belt. 6. During which sequence were evaporates and reef carbonates the predominant cratonic rocks?The Cambrian- to Early Ordovician-aged sediments of the Sauk Sequence 11,12 that overlie the Great Unconformity are ... L. L. Sequences in the cratonic interior of North America. Geol. Soc. Am. ...A well studied intra-cratonic sedimentary sequence, the Lower Permian Shanxi Formation in the Ordos Basin, northern China, is characterized by a typical back-stepping or source-ward ...six cratonic sequences. Cratonic sequence. a large scale lithostratigraphic unit representing a major transgressive-regressive cycle bounded by craton wide unconformities. Transgressive. well preserved. Regressive. marked by unconformities. Sequence Stratigraphy. the study of rock relationships within a time-stratigraphic framework.What two post-Paleozoic Cratonic (Sloss) Sequences have no rock representation in the Grand Canyon area? Sauk, Tippecanoe Tippecanoe, Kaskaskia Zuni, Tejas Kaskaskia, Absaroka Previous question Next question

These interregional unconformities subdivide the cratonic stratigraphic column into six sequences—major rock-stratigraphic units (of higher than group, megagroup, or …cratonic sequence. The Catskill Delta clastic wedge resulted from weathering & erosion of the ___ highlands. Acadian. The spread of the sea over land areas & the spread of consequent unconformable deposit of the sediments on older rocks. Transgression.By studying peridotite xenoliths (like this garnet lherzolite) that come from cratonic lithospheric mantle, scientists can see what conditions may have formed cratons. Credit: James St. John, CC ...Abstract. The Sauk sequence includes all rocks of the Cambrian System and the Canadian Series (Lower Ordovician). These strata occur above the unconformity at tIntra-cratonic basin has the retrogradational sequence stratigraphic pattern. • The observed cyclothemic sequences were simulated by numerical simulation. • …Other articles where Sauk Sequence is discussed: epeirogeny: …recognized of these are the Sauk Sequence (Late Precambrian to mid-Ordovician; about 650 to 460 million years ago), the Tippecanoe Sequence (mid-Ordovician to Early Devonian; about 460 to 400 million years ago), the Kaskaskia Sequence (Early Devonian to mid-Carboniferous; about 408 to 320 million years ago), and the Absaroka ...Study with Quizlet and memorize flashcards containing terms like the phanerozoic eon represents approximately what percent of geologic time, genetic basis for diversification of body forms was established sometime in the..., which cratonic sequence is the oldest? and more.The mechanism or mechanisms that produced the relative sea-level changes necessary to create the pattern of cratonic sequences and their bounding unconformities remains uncertain. The two end-member possibilities are eustatic sea-level change and epeirogeny. First-and second-order cycles of eustatic change (periods of 200-300 and 10-80 Myr ...The flat-lying Atlantic Coastal Plain (ACP) contains a thick sequence of sediments weathered from the Appalachians and deposited during the Zuni (Cretaceous) ...

A well documented intra-cratonic sedimentary sequence, the Lower Permian Shanxi Formation in the Ordos Basin, northern China, was used to illustrate a sequence stratigraphic model developed for ...

Cratonic Sequences Repeated advances (transgressions) and retreats (regressions) of epicontinental seas. The regressions exposed old seafloors to erosion, creating extensive unconformities that mark the boundaries of each transgressive-regressive cycle of deposition.Tippecanoe sequence. The Tippecanoe sequence was the cratonic sequence--that is, the marine transgression--that followed the Sauk sequence; it extended from roughly the middle Ordovician to the early Devonian.. edimentary characteristics. After the regression of the Sauk Sea early in the Ordovician, the exposed craton for a time underwent vigorous …a cratonic (sloss) sequence is recognized by. transgressive phase followed but a regressive phase. the first cratonic sequence recognized in the early paleozoic is the. sauk. the periods of the paleozoic in order from oldest to youngest are. cambrian, ordovician, silurian, devonian, mississippian, pennsylvanian, permian.Instructor. Due Date. 1) The paleozoic geological record shows four sequences, namely: Sauk, Tippecanoe, Kaskaskia, and Absaroka. The ages of each sequence are as follows; the Sauck is the earliest of all the sequences. It dated from the late Proterozoic through the old Ordovician; the marine transgression began after the middle Cambian.Definition of the cratonic sequences of North America by Sloss (1963) provided the foundation for much of the sequence stratigraphic model then copied by other workers (e.g., Vail et al., 1977). Vail and coworkers chose to emphasize eustasy as the primary mechanism responsible for the relative sea-level changes necessary to explain cratonic ...Deciphering the record of time for strata deposited in epeiric seas across cratonic interior regions with slow-subsidence remains a challenge, such that the application of standard sequence ...These interregional unconformities subdivide the cratonic stratigraphic column into six sequences—major rock-stratigraphic units (of higher than group, megagroup, or supergroup rank) which can be identified, where preserved, in all cratonic interior areas.The Tippecanoe sequence was the cratonic sequence --that is, the marine transgression --that followed the Sauk sequence; it extended from roughly the Middle Ordovician to the Early Devonian . Sedimentary characteristics Sauk sequence. The Sauk sequence was the earliest of the six cratonic sequences that have occurred during the Phanerozoic in North America. It was followed by the Tippecanoe, Kaskaskia, Absaroka, Zuñi, and Tejas sequences. [1]the major cratonic sequences of the Early Paleozoic ¨ the importance of transgressions and regressions in the cratonic history of North America, especially as seen at the Grand Canyon ¨ the major events of the Sauk sequence ¨ the major events of the Tippecanoe sequence, with an emphasis on modern and ancient reefs and evaporites

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11 Cratonic basins may be considered an inherentcomponent of the Wilson cycle, 12 initiating after continental collision and supercontinent, craton development; 13 and before rifting and continental break-up. They do not result directly from the 14 horizontal plate motions characteristic of the Wilson Cycle, but from localised ...Study with Quizlet and memorize flashcards containing terms like Epicontinental Sea: Define. Why were they important?, Cratonic Sequences: Define. What is the sequence of events?, Orogeny: Define. What causes an orogenic event? and more.This sequence of events could help solve one of the greatest mysteries in geology, megasequences (described below), which has long puzzled geologists, both evolutionists and creationists. ... L. Sloss, "Sequences in the Cratonic Interior of North America," Geological Society of America Bulletin 74 (1963): 93-114.THE KASKASKIA SEQUENCE ¨ Perspective: The Canning Basin, Australia— A Devonian Great Barrier Reef Reef Development in Western Canada . Black Shales The Late Kaskaskia—A Return to Extensive Carbonate Deposition. THE ABSAROKA SEQUENCE What Are Cyclothems, and Why Are They Important? Cratonic Uplift—The Ancestral RockiesA cratonic sequence with coarse-grained sedimentary rocks on the bottom and finer-grained sedimentary rock in the middle and carbonate rocks on top represents a: transgression. What types of sedimentary rocks represent orogenies of the Paleozoic?and formed the foundation of the continents. Shields. The major cratonic structures. and mobile belts of North America; that formed during the Paleozoic Era.The Absaroka sequence was a cratonic sequence that extended from the end of the Mississippian through the Permian periods. It is the unconformity between this sequence and the preceding Kaskaskia that divides the Carboniferous into the Mississippian and Pennsylvanian periods in North America.sequences and unconformities on different, widely separated continental margins, which implied some global cause, perhaps glacial eustatic fluctuations. Their approach recognized shorter-duration successions than Sloss’ original sequences. Whereas each of his six craton-wide sequences represented hundreds of millions of years, the seismic ... Interior Cratonic Basins, ... Within the basin, the Tippecanoe sequence consists of about 70% carbonates; in decreasing order of abundance, other major lithologies include shale, sandstone, and chert. Tippecanoe strata range in thickness from about 600 ft (180 m) in the northwestern part of the basin to 3200 ft (1000 m) in the south (Figure 2 ...Study with Quizlet and memorize flashcards containing terms like the phanerozoic eon represents approximately what percent of geologic time, genetic basis for diversification of body forms was established sometime in the..., which cratonic sequence is the oldest? and more. ….

The Tippecanoe sequence was the cratonic sequence--that is, the marine transgression--that followed the Sauk sequence; it extended from roughly the Middle Ordovician to the Early Devonian. Wikiwand is the world's leading Wikipedia reader for web and mobile.Sequence of Strata and Disconformities in the Older Pennsylvanian Section in Oklahoma and Kansas. Following is a brief discussion of the rock sequence that embraces the beds of the Marmaton group. Table 1 shows the classification of the Pennsylvanian rocks in the northern Mid-Continent region. Table 2 gives the classification of the Marmaton group.Cratonic sequence 197. A widespread association of sedimentary rocks bounded above and below by unconformities that were deposited during a transgressive- regressive cycle of an epeiric sea; for example, the Sauk Sequence. Two major components of a continent.Study with Quizlet and memorize flashcards containing terms like transcontinental arch, tippecanoe sequence, taconic orogeny and more.The magnitudes of Phanerozoic crustal deformation in the cratonic interior certainly are very small compared to those known from active continental margins, and the rates of deformation have been generally slower (Schwab, 1976). ... (1963) cratonic sequences (Fig. 1). You do not have access to this content, please speak to your institutional ...The major unconformity at the base of the Pennsylvanian System marks the base of the Absaroka Sequence (Sloss et al., 1949, p. 121) (fig. 14). In Illinois the sequence includes only the strata of the Pennsylvanian System, and its top is the major unconformity at the base of the Cretaceous System (Swann and Willman, 1961).Study with Quizlet and memorize flashcards containing terms like acritarchs, animikie group, coelum and more.Abstract. When the major mineral deposits of Africa are studied in relation to the structure of the continent, two tectono-metallogenic units emerge, as follows: (a) younger orogens consisting of zones which have suffered orogenesis from time to time during the past ca. 1200 m.y. — characterised by major deposits of Cu, Pb, Zn, Co, Sn, W, Be ...sequences and unconformities on different, widely separated continental margins, which implied some global cause, perhaps glacial eustatic fluctuations. Their approach recognized shorter-duration successions than Sloss’ original sequences. Whereas each of his six craton-wide sequences represented hundreds of millions of years, the seismic ... Cratonic sequence, 29 Tem 2013 ... Taylor, 2012, The Sauk megasequence in the cratonic interior of North America: Interplay between a fully developed inner detrital belt and the ..., Study with Quizlet and memorize flashcards containing terms like An estimated 82%-88% of all marine life went extinct at the end of the Ordovician, At the beginning of the Paleozoic there were eight major continents, All chordates have a post-anal tail, dorsal nerve cord, pharyngeal slits, and a notocord and more., The Cambrian source rocks are widely distributed in the cratonic region of the Tarim Basin. Shales, mudstones and marlstones deposited in starved basin facies occur mainly in the eastern part of the basin, while marl and muddy dolomite from evaporites of lagoonal facies are developed largely in the western Tarim (Gu et al., 1994, Zhang et al., 2004a)., Study with Quizlet and memorize flashcards containing terms like The Tippecanoe Sequence consists of the strata overlying the _____ Sequence and underlying the _____Sequence., A major transgressive-regressive cycle bounded by craton-wide unconformities is called a Select one: a. cyclothem b. shallow sea c. biostratigraphic unit d. orogeny e. cratonic sequence, Cambrian rocks exposed in the ..., These very old rocks are known as cratons, from the Greek root word κράτος, meaning strength. Understanding how cratons have survived for such a long time, some almost since the birth of the ..., Sequence so far. I) Rodinia breaks up and forms rift basin in proterozoic. II) Sauk sequence = shale, sandstone, limestone (Great Carbonate bank) III) Tippacanoe sequence. IV) Taconic Orogeny = wedge fills w/sediment, island arc hits and forms Taconic mountains. V) Kaskaskian = limestone, some sand + shale - volcanic ash in limestone ..., Verified answer. physics. A wire is made by attaching two segments together, end to end. One segment is made of aluminum and the other is steel. The effective coefficient of linear expansion of the two-segment wire is. 19 \times 10 ^ { - 6 } \left ( \mathrm { C } ^ { \circ } \right) ^ { - 1 } 19×10−6 (C∘)−1., Earth Sciences. Earth Sciences questions and answers. Question 11 2 Which orogenic event, along what is now the East coast of North America, marked the initial mountain building event that helped form Pangea? Acadian Antler Taconic Alleghanian Question 12 2 p Which of the following statement is NOT valid? The sedimentary record of cratonic ..., Facies sequences are a series of facies whose transitions and relationships are geologically significant with respect to depositional environment (Walker 1984; Reading 1986b ). The term 'sequence' had been co-opted in the sequence stratigraphy literature (Sect. 2.4) to have a more specific meaning., This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: How can geologists determine the location of the continents during the Paleozoic Era? The geologic history of the Paleozoic Era can be determined by studying cratonic sequences. Why?, During deposition of the Sauk Sequence, the only area above sea level besides the Transcontinental Arch was the a. Cratonic margin; b. Canadian shield; c. Queenston Delta; d., Eustasy can generate sequences and unconformities, but it cannot tilt rocks, and yet observation of cratonic strata shows large-wavelength tilting and the resulting patterns of erosion. However, comparing the chronostratigraphic diagram from Case 5 (Fig. 7B) with the chronostratigraphic diagram from 1 (Fig. 5) shows a discrepancy in the pattern ..., ability for reproduction and metabolism. Continents grow by a process called? accretion: the process of growth or increase, typically by the gradual accumulation of additional layers or matter. The two main rock types that are associated with the Archean "shield" areas are. granite and gneiss. Study with Quizlet and memorize flashcards ..., Carboniferous (Miss and Penn) What is the correct order of events in a cratonic sequence? Transgression, Regression, Unconformity. What is Western Pangea? Continent formed from the collision of Eurameria and Gondwana. Which of the following groups of marine reptiles is still living in the oceans today?, Earth Sciences questions and answers. Question 1 Place the Paleozoic cratonic sequences of North America in the correct order, from oldest to youngest. ( )Kaskaskia Sequence ( )Sauk Sequence ( )Tippecanoe Sequence ( )Absaroka Sequence Question 2 Match the term to the correct definition. ( ) Sea-level rise 1. Transgression ..., A major transgressive-regressive cycle bounded by cranton-wide unconformities is a cyclothem cratonic sequence orogeny biostratigraphic unit Shallow seaway. Cratonic sequence. What evidence in the geologic record indicates that the Tectonic Orogeny occured? Tippecanoe Sequence Queenston delta sediments Sauk Sequence Plate tectonics Major ..., Early studies of cratonic basins focused on the Michigan cratonic basin (Sleep 1976; Haxby et al. 1976), and the adjacent Hudson Bay and Williston basins (Fowler & Nisbet 1985). Sleep (2018) opens this volume with a review of the Michigan Basin, and concludes that thermal subsidence is an appropriate mechanism for its formation and points out ..., Definition of CRATONIC in the Definitions.net dictionary. Meaning of CRATONIC. What does CRATONIC mean? Information and translations of CRATONIC in the most comprehensive dictionary definitions resource on the web. Login . The STANDS4 Network. ABBREVIATIONS; ANAGRAMS; BIOGRAPHIES; CALCULATORS; CONVERSIONS; DEFINITIONS; GRAMMAR; LITERATURE; LYRICS;, Put the following cratonic sequences in correct order from oldest to youngest. Oldest Sequence Middle Sequence Youngest Sequence A Sauk B. Tippecanoe C. Kaskaskia 1 points Save Answer QUESTION 6 Which of the following events occurred at the end of the Ordovician? Batica colides with Laurentia producing Caledonian Orogeny Sea level fuctuation ..., We propose nine individual ~ 56 Myr-long cratonic sequences (Figs. 4 e and 6 e), including four units previously defined qualitatively by Sloss (Sauk, Tippecanoe, Zuni/Cretaceous, Tejas/Cenozoic), two units previously defined by Peters (Triassic and Jurassic, which together comprise part of Sloss' Absaroka), and three new sequences (Kaskaskia 1 ..., More commonly, sequence stratigraphic models have been developedfor specific time intervals and/or geographic regions. Sequence stratigraphy is aptly termed a stratigraphy of surfaces. Thus we present here first a discussion of the various discontinuity surfaces and condensed beds in cratonic successions. We then combine these data with that, Pierre Robin sequence (or syndrome) is a condition in which an infant has a smaller than normal lower jaw, a tongue that falls back in the throat, and difficulty breathing. It is present at birth. Pierre Robin sequence (or syndrome) is a co..., Early studies of cratonic basins focused on the Michigan cratonic basin (Sleep 1976; Haxby et al. 1976), and the adjacent Hudson Bay and Williston basins (Fowler & Nisbet 1985). Sleep (2018) opens this volume with a review of the Michigan Basin, and concludes that thermal subsidence is an appropriate mechanism for its formation and points out ..., The Sauk megasequence in the far inboard region of the cratonic interior of North America (Minnesota, Wisconsin, and Iowa) is divisible into two packages that fundamentally differ from one another in facies and stratigraphic attributes. A lower Sauk succession package, Marjuman–early Skullrockian in age, is characterized by deposits of …, Study with Quizlet and memorize flashcards containing terms like 1. The Paleozoic ocean that separated North America and what is now northern Europe when a supercontinent formed rifts that split the land mass was known as a. Iapetus. b. Mirovia. c. Proto-Pangea. d. Laurasia., 2. The sequence of sediment deposition on the North American craton during Paleozoic, from oldest to youngest, is a ..., Hierarchy of sedimentary discontinuity surfaces and condensed beds from the middle Paleozoic of eastern North America: implications for cratonic sequence stratigraphy / P.I. McLaughlin, C.E. Brett and M.A. Wilson; Anatomy of epicontinental flooding: Late Albian-Early Cenomanian of the southern U.S. Western Interior Basin / F. E. Oboh-Ikuenobe ..., The southern Ozark region, Arkansas, Missouri, and Oklahoma occupies the southern border of the North American craton. Its sedimentary succession preserves a complete Wilson Cycle reflecting the Late Precambrian-Cambrian rifting of Rodinia into the Laurussian and Gondwanan landmasses that opened the Iapetus Ocean Basin during the Late Cambrian-Middle Mississippian. The basin was closed during ..., Study with Quizlet and memorize flashcards containing terms like Sauk Sequence, Tippiecanoe Sequence, Kaskaskia sequence and more. ... Sauk Sequence. Click the card to flip 👆. Proterozoic- Early Ordovician, First of the cratonic sequences. deposited lots of limestone/dolostone during its transgression, but much of it was destroyed due to ..., Answer : The Absaroka Sequence happened during the Late Carboniferous to mid-Jurassic period around 320 to 176 million years ago. Major identifying characteristics of Absaroka Sequence : The Absaroka grouping was a cratonic succession that stretched …, Cratonic Sequences of N. America • Cordilleraorogenies • Appalachia • orogenies • White areas represent sequences of rocks That are separated by large-scale unconformities shown in brown Cratonic Sequence • A cratonic sequence is • a large-scale lithostratigraphic unit representing a major transgressive-regressive cycle bounded by ..., Jan 4, 2016 · Page 8. Late Cretaceousnote the seaway in central US. Page 9. • The world's climates result from the complex interaction between – wind and ocean currents – and the location and topography of the continents. • In general, dry climates occur – on large landmasses – in areas remote from sources of moisture – and where barriers to ... , • widespread sandstone Æ limestone sequences • separated by major inter-regional unconformities Sauk Sequence (Cambrian-Early Ordovician) Tippecanoe Sequence (Late Ord.-Silurian) Ordovician Taconian Orogeny • warped crust of eastern craton • created intra-cratonic basins and arches e.g., Michigan Basin, Cincinnati Arch , a cratonic (sloss) sequence is recognized by. transgressive phase followed but a regressive phase. the first cratonic sequence recognized in the early paleozoic is the. sauk. the periods of the paleozoic in order from oldest to youngest are. cambrian, ordovician, silurian, devonian, mississippian, pennsylvanian, permian.