Australia began drifting northward, away from East Antarctica, creating seafloor there. Tectonic setting of eastern North American rifted margin, showing major Paleozoic compressional . apart the crusts and crust slab sink in the middle, forming a rift Australia began drifting northward, away from East Antarctica, creating seafloor there. Oceanography 17:4754, Harris PT, Whiteway T (2011) Global distribution of large submarine canyons: geomorphic differences between active and passive continental margins. Edukasyon sa Pagpapakatao, 08.05.2020 04:05, Add a question text of at least 10 characters. "Fifty years of the Wilson Cycle concept in plate tectonics: an overview". Tectonic plates are fragments of the earths crust that float atop a hot, flowing mantle. At the end of this module, the successful learner will be able to: 1. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. By clicking Accept All, you consent to the use of ALL the cookies. 1. Bass Hunting 3D Game Free Offli, What Is The Best Murder Mystery Game For A Party? This cookie is set by GDPR Cookie Consent plugin. And because of this factor, we can see that there are a lot of difference on the seafloor in one certain ocean compare to another oceans. The characteristic is the existence of the continental margins in the ocean seafloor that creates the ocean basin. The Murder Mystery: This is a casino themed murder, Is Tuna A Delicacy? . A Wilson cycle consists of six stages: embryonic, juvenile, mature, declining, terminal, and suturing. "}}, {"@type": "Question","name": "What is the biggest ocean basin in the world? Meanwhile, to let you know which ocean is in the terminal stage or not you can see the existence of the young mountains in the ocean. While there is one global ocean, it is generally divided up into five major basins: the Pacific, the Atlantic, the Indian, the Southern, and the Arctic. And because of this, the ocean seafloor and also the ocean ridge is being eliminated. Intergovernmental Oceanographic Commission, Moscow, St Petersburg, pp 120130, Gardner JV, Armstrong AA (2011) The Mariana trench: a new view based on multibeam echo sounding, American Geophysical Union, Fall Meeting 2011. However, the early-stage tectonic evolution and the subduction initiation time of different oceanic basins were not clear in the southern Paleo-Asian Ocean. is that domain is a geographic area owned or. Identify and describe the structure of the ocean basin. The Wilson cycle begins with a rising plume of magma and the thinning of the overlying crust. (eds) Submarine Geomorphology. PubMedGoogle Scholar. Wilson Cycle: The Opening and Closing of an Ocean Basin And A Plate Tectonic Rock Cycle Jump Ahead to Specific Stages How Much Do You Understand - A Self Test One Page Wilson Cycle Circular Wilson Cycle Published Wilson Cycle Stage A - Stable Craton Stage B - Hot Spot/Rifting Stage C - Early Divergent Margin Stage D - Full Divergent Margin See Answer. ","acceptedAnswer": {"@type": "Answer","text": "A number of major features of the basins depart from this averagefor example, the mountainous ocean ridges, deep-sea trenches, and jagged, linear fracture zones. Ocean basin is virtually the region that contains a huge amount of water. The characteristic is the existence of the continental margins in the sea seafloor that creates the ocean basin. In the east it was formed by backarc spreading from 30 million years ago. Peter T. Harris . Stages of Ocean Basin Evolution Embryonic rift valley forms as continent begins to split Great Rift Valley, Eastern Africa Juvenile sea-floor basalts begin forming as continental sections diverge Red Sea Mature broad ocean basin widens, trenches develop and subduction begins Atlantic Ocean Declining Science 277:19561962, Stow DAV (2010) Vanished ocean: how Tethys reshaped the world. Experts are tested by Chegg as specialists in their subject area. And here today in this article I would like to explain and inform to you about each stages so you can understand better. During this period spreading continued in the Pacific basin with the growth of the Pacific Plate and the consumption by subduction of its bordering plates, including the Izanagi, Farallon, and Phoenix. Quat Sci Rev 23:14351454, Baker BH, Mohr PA, Williams LAJ (1972) Geology of the eastern rift system of Africa. Origin and Geomorphic Characteristics of Ocean Basins. Subsequently subduction is initiated on one of the ocean basins margins and the ocean basin closes up. Right-click on Rythm bot name and select Kick, Is Fishing Clash Offline? Geological Society of America, New York, pp 599620, Hillier JK, Watts AB (2005) Relationship between depth and age in the North Pacific Ocean. Ideas, 10 distance from equator to north pole in miles Ideas, 10 how did the inuit adapt to their climate Ideas, Extra Information About what are the four stages of the evolution of an ocean basin from first to last? You need to set the Weather API Key in the theme options page > Integrations. Lets just take a look to our ocean. - The Pacific Ocean basin is shrinking, and the Atlantic ocean basin is growing wider. The Amerasian basin in the western Arctic Ocean had formed during an earlier spreading phase from about 130 to 110 million years ago. ","acceptedAnswer": {"@type": "Answer","text": "An example for the mature stage is the Atlantic Ocean. the lower crust is broken along normal faults; (2) tension pulls India and Madagascar, as a unit, rifted away from Australia and Antarctica prior to 130 million years ago and began drifting northward, creating seafloor adjacent to Western Australia and East Antarctica. There are varying opinions as to whether the amount of continental crust is increasing, decreasing, or staying about the same, but it is agreed that the Earth's crust is constantly being reconfigured. After the elimination of seafloor and the collide of continents there will be created and or the forming of the continental mountains chain. An example for the mature stage is the Atlantic Ocean. The characteristic is the existence of the continental margins in the sea seafloor that creates the ocean basin. Since that time the major developments have included a shrinking of the Pacific basin at the expense of the growing Atlantic and Arctic basins, the opening of the Tethys seaway circling the globe in tropical latitudes and its subsequent closing, and the opening of the Southern Ocean as the southern continents moved north away from Antarctica. Ideas, 10 during g1 stage of interphase, a diploid organism contains how many copies of each gene? ","acceptedAnswer": {"@type": "Answer","text": "Ocean basin. Top 7 what innovation did jethro wood add to plows in the 1800s. Anyone you share the following link with will be able to read this content: Sorry, a shareable link is not currently available for this article. Analytical cookies are used to understand how visitors interact with the website. The evolution contains five stages which are embryonic stage, juvenile stage, mature stage, declining stage, terminal stage, mature stage, and continental collision. b) (1) The upper crust is broken along reverse faults while the Embryonic. And in the terminal stage the movement that appears and happens are the uplift and the converge. In the ocean plate, this process causes the seafloor spreading. force. hypsometric curves describe the stages of landscape evolution, which also provide . What are the four stages of the evolution of an ocean basin from India began drifting northward directly toward Asia. If you have questions that need to be answered about the topic what are the four stages of the evolution of an ocean basin from first to last?, then this section may help you solve it. Other significant features of the ocean floor include aseismic ridges, abyssal hills, and seamounts and guyots. the ocean basins so a hypsometric curve is really a representation of competition between uplift and erosion . Embryonic Ocean Basin 2, Juvenile Ocean Basin 3, Mature Ocean Basin 4, and Declining Ocean Basin 5 are all included. apart the crusts and exposes the mantle between them; (3) the The terminal category of ocean basins is characterised by the greatest mean sediment thickness (4311m) and greatest percentage area of submarine fans (7.2%) of any ocean basin. Rank, in order, the evolution of a continental hot spot. The evolution contains five stages which areembryonic stage, juvenile stage, mature stage, declining stage, terminal stage, mature stage, and continental collision. And now, we have continental collision as the last stage of ocean basin evolution. Just like its name, embryonic is the first stage of ocean basin evolution. Put the first step on top. Mar Geodesy 32:355371, Broecker WS (1991) The great ocean conveyor. 1. continued spreading, an ocean and ridge system are created. The evolution contains five stages which are embryonic stage, juvenile stage, mature stage, declining stage, terminal stage, mature stage, and continental collision. There are some stages of ocean basin evolution. Where To Go Fishing On Long Beach Island? The northward movement of Australia resulted in the emergence of several subduction zones and island arcs in the southwest and equatorial Pacific. Elsevier Ltd., Open University, Milton Keynes, UK, Yesson C, Clark MR, Taylor ML, Rogers AD (2011) The global distribution of seamounts based on 30 arc seconds bathymetry data. center in the Indian Ocean. There are some stages of ocean basin evolution. d) (1) The upper crust is broken along normal faults while the Atwater BF, Carson B, Griggs GB, Johnson HP, Salmi MS (2014) Rethinking turbidite paleoseismology along the Cascadia subduction zone. Then, to know either the stage of the ocean basin evolution is in the mature stage or not there is a characteristic that you can know. The ocean basin can just stuck and stay in one stage and not continuing the next stages. Durkheim defined social facts as things external t, Is SubwayS Dna Test For Tuna Reliable? Question sent to expert. The Wilson Cycle can be described in six phases of tectonic plate motion: the separation of a continent ( continental rift ), formation of a young ocean at the seafloor, formation of ocean basins during continental drift, initiation of subduction, closure of ocean basins due to oceanic lithospheric subduction, and finally, collision of two These are: 1) the spatial variability of the structure and stratigraphy of rift basins and rift systems, 2) the structural and stratigraphic evolution of rift basins and rift systems; and 3) the transition from rifting to drifting. You also have the option to opt-out of these cookies. The solid crust on the outside, the mantle, and the coresplit into the outer core and the inner coreare the four main layers of the Earth. The latest phase of ocean basin growth began just less than 200 million years ago with the breakup of the supercontinent Pangea, the enormous landmass composed of nearly all the present-day continents. What are the four stages of the evolution of an ocean basin from first to last? "}}, {"@type": "Question","name": "What is an ocean basin? Ano ang naging batayan ng pang-ekonomiya at pampulitikang desisyon ng mga bansa? By default, what ::Refer to the image below to answer the following question. Trace the stages of the evolution of the ocean basin. . Top 8 what invention made farming possible in dry areas, Top 9 what invention led to the discovery of prokaryotic cells, Top 9 what invention led to the discovery of cells by robert hooke. (b) Mature rifting with through-going boundary fault zone, widespread deposition, and footwall uplift and erosion. Term of Use | Privacy Policy | Adchoices | Disclaimer | Contacts us, Differences Between the Ocean and The Sea, Characteristic of Drought Season and Countries Experiencing It. Then, to know either the stage of the ocean basin evolution is in the mature stage or not there is a characteristic that you can know. And here today in this article I would like to explain and inform to you about each stages so you can understand better. Top 8 what impact do you think egypts natural barriers had on its ability to fight off invaders. Global Biogeochem Cycles 30:381397, Muller RD, Roest WR, Royer JY, Gahagan LM, Sclater JG (1997) Digital isochrons of the worlds ocean floor. Ocean basin. ","acceptedAnswer": {"@type": "Answer","text": "There are five major subdivisions of the world ocean: the Pacific Ocean, Atlantic Ocean, Indian Ocean, Southern Ocean, and Arctic Ocean. - The embryonic stage begins with continental pressed being uplifted and pulled part. Gradients of decreasing DO concentration suggests bottom water pathways within basins and between adjacent basins of similar (or greater) depth. continued. Frequently Asked Questions About what are the four stages of the evolution of an ocean basin from first to last? last Pergamon Marine Series, Oxford, Wessel P (2001) Global distribution of seamounts inferred from gridded Geosat/ERS-1 altimetry. The changes from the young mountains become mature mountains is being caused by the collide of continents. Deep Sea Res Part I 58:442453. "}}, {"@type": "Question","name": "What are the elements of an active oceanic basin? Top 8 what international event led to the red scare? "}}, {"@type": "Question","name": "How deep is the ocean basin in miles? The Tethys seaway also opened during this rifting phase as Europe pulled away from Africa. Features of the ocean include the continental shelf, slope, and rise. apart the crusts and crust slab sink in the middle, forming a rift Other significant features of the ocean floor include aseismic ridges, abyssal hills, and seamounts and guyots. Various parts of the modern day Atlantic Ocean opened at different times over the Mesozoic to Cenozoic periods following the Wilson Cycle. The seafloor in the western portion of the Philippine Sea developed between 60 and 35 million years ago. Together they comprise the overpowering majority of all water on this planet and feature a typical depth of virtually 4 km (about 2.5 miles). squeeze ocean basin, collision / regional uplift / What you need to know is that in this very first stage you can see a complex system that is marked by the linear rift valley and or the continents. Embryonic Ocean . These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. Cited by 38 As outlined in Table 1 and Figure 2, the six-stage cycle for opening and closing of ocean basins (only later termed the Wilson Cycle), The six-stage Wilson Cycle of opening and closing of basins , a top-notch website with top-notch content essays on a relevant topic with beautiful content, 3 Ocean basin Assessment Direction Encircle the letter of the , The Ocean Basins Their Structure and Evolution, The Wilson Cycle Dr. Asghar Ali Department of Geology , fantastic online content on a relevant topic, Your email address will not be published. Basically, each stage has some characteristic that can be seen to know in which stage the ocean basin evolution is. Between 60 and 50 million years ago, significant events occurred in the Indian Ocean and southwest Pacific. they are good conductors of heat.d. Tectonic map of region around "}}, {"@type": "Question","name": "Are continents or ocean basins older? found here, Extension (spreading) of the An instance for the mature stage is the Atlantic Ocean. The Caribbean Sea and the Gulf of Mexico formed as a result of the relative movement between North America and South America. Shortly after this time continental fragments, including possibly Tibet, Myanmar (Burma), and Malaya, rifted away from the northwest coast of Australia and moved northward, thereby creating the oldest seafloor in the Timor Sea. The following are stages of the ocean basin evolution, except Select one: a. Embryonic b. Metamorphism c. Mature d. Declining 1 See answer Advertisement Advertisement sunnykushwaha3919 sunnykushwaha3919 Explanation: d is the correct option. ocean basin widens, trenches develop and subduction begins, subduction These boundaries are common areas of tectonic activity, which is the deformation of the earth's crust due to movement of tectonic plates resulting in activity (such as earthquakes, volcanoes and mountain building). the lower crust is broken along normal faults; (2) tension pulls What are the five major basins of the ocean? A number of major features of the basins depart from this averagefor example, the mountainous ocean ridges, deep-sea trenches, and jagged, linear fracture zones. In the southwest Pacific, New Zealand, along with the Lord Howe Rise and the Norfolk Ridge, rifted away from Australia and Antarctica between 80 and 60 million years ago, opening the Tasman Sea. ", "Static or Mobile Earth: The Current Scientific Revolution", "Assembly and Dispersal of Supercontinents", https://en.wikipedia.org/w/index.php?title=Wilson_Cycle&oldid=1118670150, Creative Commons Attribution-ShareAlike License 3.0. The buried hills in the Chengdao-Zhuanghai area are rich in oil and gas resources, and their structures exhibit complex styles with unique evolutionary characteristics. The Atlantic Ocean has the most straightforward pattern of ocean-floor ages among the major ocean basins. Supercontinent cycle. Former collision zones, young, and old sutures are where continental break-up can most readily occur; Oceanic transfer faults, which can reactivate young and old sutures; This page was last edited on 28 October 2022, at 07:01. Its oldest rocks have been dated at about 200 million years. These parks in the USA arent just a section of a, Are Huk Hats Waterproof? valley; (3) continued spreading creates a narrow sea; (4) after We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. We also use third-party cookies that help us analyze and understand how you use this website. If you want to compare the oceans seafloor one to another there will be a difference of their bottom structure. In radiotherapy why is gamma radiation used to kill cancer cells? Together they contain the overwhelming majority of all water on the planet and have an average depth of almost 4 km (about 2.5 miles). apart the crusts and exposes the mantle between them; (3) continued You will receive an answer to the email. closing (end) of an ocean which is driven by Plate Tectonics. However, you may visit "Cookie Settings" to provide a controlled consent. Agents of metamorphism include temperature, pressure, and fluids. What are the 4 major oceans of the world? last of the sea floor is eliminated and continents collide, The Red Sea Forming a new ocean basinLife Cycle of an OceanTypes of Faults, Extensional pulling apart, normal fault, Compressional pushing together, thrust fault, The type of faults show the direction of stress, rift valley deepens and is flooded by seawater, Red Sea(true ocean basin, but still narrow), Gulf of Aden(becoming an open ocean basin), ocean basin with spreading center & continental margins, trenches / volcanic island arcs / coastal mountain ranges, convergence continental blocks squeeze ocean basin, collision / regional uplift / narrow, closing seas, Persian Gulf small remnant of ancient Tethys Sea, almost completely closed, continental collision with regional uplift, extension of the MOR spreading center in the Indian Ocean. This widget requries the Arqam Lite Plugin, You can install it from the Theme settings menu > Install Plugins. In: Harris PT, Baker EK (eds) Seafloor geomorphology as benthic habitat: GeoHAB atlas of seafloor geomorphic features and benthic habitats. direction of stress, rift valley deepens and is With an average depth of 3,700 meters, experts have also divided the world ocean into various zones based on depth from the surface for ease of oceanographic studies. This, in turn, has led to greatly improved geological, geodynamic and numerical models for the crustal and mantle processes involved in continental margin formation from the initial stages of rifting through continental rupture and break-up to development of a new ocean basin. The Indian subcontinent first touched against the Asian continent about 53 million years ago, developing structures that preceded the main Himalayan orogeny (mountain-building event), which began in earnest some 40 million years ago. Less than 30 million years ago, seafloor spreading ceased in the Labrador Sea. valley; (3) continued spreading creates a narrow sea; (4) after The fresh or frozen flesh of tuna is widely regarded as a delicacy in most areas, Are Dimension Tables And Domain Tables The Same Thing? These cookies will be stored in your browser only with your consent. The cookie is used to store the user consent for the cookies in the category "Other. Stages in the evolution of a rift basin. Necessary cookies are absolutely essential for the website to function properly. a) (1) The upper crust is deformed by ductile stretching while the lower crust is broken along normal faults (2) tension pulls apart the crusts and crust slab sink in the middle forming a rift valley (3) continued spreading creates a narrow sea (4) after continued spreading an ocean and ridge system are created. What Is The Mature Stage Of Ocean Basin Evolution? Continued closure between Africa and Europe, which began about 100 million years ago, caused the isolation of the Mediterranean Sea, so that by 6 million years ago this water body had completely evaporated. The characteristic is the existence of the continental margins in the ocean seafloor that creates the ocean basin. a) (1) The upper crust is deformed by ductile stretching while the lower crust is broken along normal faults; (2) tension pulls apart the crusts and crust slab sink in the middle, forming a rift valley; (3) continued spreading creates a narrow sea; (4 . In this article, 5 major basins will be talked about in details including their description, characteristics and usage. Possibly simultaneously or shortly after this rifting began, South America started to separate from Africa, initiating the formation of seafloor in the South Atlantic Ocean. Thank you for reading our article until the end and being our loyal follower. broad ocean basin widens, trenches develop and subduction begins. These cookies will be stored in your browser only with your consent. This cookie is set by GDPR Cookie Consent plugin. a) (1) The upper crust is deformed by ductile stretching while Divergent plate boundaries occurs on two tectonic plates are break apart. 2 What are the stages of the ocean basin evolution? IHO Sea Areas. An example for the mature stage is the Atlantic Ocean. 1. The basin is found on the east of the North and South American continents, west of Asia, Malaysia and Australia. And example of the juvenile stage is the Red Sea. You also have the option to opt-out of these cookies. This cookie is set by GDPR Cookie Consent plugin. Australia began drifting northward, clear of East Antarctica, developing seafloor there. Even though there are some stages of evolution, this does not mean that the ocean basin will through all the stages perfectly. Each layer has its own properties, composition, and characteristics. Declining. However, before that the ocean basin is experience the rifting and also volcanic at the beginning. Below the ocean floor, there are a few small deeper areas called ocean trenches. For instance, hooks sizes from smallest to biggest would be #10, #8, #, What Are The Best Amusement Parks For Toddlers? In addition, usually the geologist will see either there is a island arcs and the island trenches around the basin edge or not. 1 ), a quantitative assessment of geomorphic features that characterise ocean basins at different stages of their evolution has not previously been completed. narrow, closing seas, Persian Gulf small remnant of ancient Tethys Sea, almost completely Prog Oceanogr 60:4798, Jamieson AJ, Fujii T, Mayor DJ, Solan M, Priede IG (2010) Hadal trenches: the ecology of the deepest places on Earth. The crust, the mantle, the outer core, and the inner core, in that order, are the layers that make up our planet and affect many of its major processes. The characteristic is the existence of the continental margins in the ocean seafloor that creates the ocean basin. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. The results of a multivariate classification of ocean basins is presented, based on an existing digital global map of seafloor features that are related to major phases of evolution, namely young, mature, declining and terminal evolutionary stages. The supercontinent cycle is the quasi-periodic aggregation and dispersal of Earth 's continental crust. ","acceptedAnswer": {"@type": "Answer","text": "The Indian Ocean is the smallest, geologically youngest, and physically most complex of the world's three major oceans (the others being the Pacific and Atlantic). Basin Res 20:467472, IHO (2008) Standardization of undersea feature names: guidelines, proposal, form, terminology, 4th edn. Juvenile. Rising mantle first encounters the base of the lithosphere . And heretoday in this article I would like to explain and inform to you about each stages so you can understand better. ","acceptedAnswer": {"@type": "Answer","text": "The Pacific is the oldest of the existing ocean basins. 1 What are the four major ocean basins parts? For example, a well-constrained seismic search for the presence of former . Then, what make it different from the mature stage is that in the continental collision the young mountain will grow and become the mature mountains. Please use this module with care. 2 The Red Sea is an embryonic ocean that appears to be opening progressively from the south, where the axial region is underlain by oceanic crust and has a rift valley. And in the terminal stage the ocean basin that has been created is shallow. Science, 07.01.2020 19:28, calmaaprilgrace What the are stages of the ocean basin evolution? In this article, 5 major basins might be talked about in particulars adding their description, features and usage. Continental shelves cover an area of 32,242,540km2 or 8.91% of the oceans (Harris et al. The Wilson Cycle explains the process of the opening (beginning) and the. But opting out of some of these cookies may affect your browsing experience. The movement that appears in this stage is the uplift of the bottom part of the ocean. Basin and Range province, small remnant of ancient Tethys Sea, almost completely [4] The first three stages (Embryonic, Young, Mature) describe the widening of the ocean and the last three stages (Declining, Terminal, and Relic Scar/Geosuture) describe the closing of the ocean and creation of mountain ranges like the Himalayas.[3]. Mar Geol 352:424, Hess HH (1962) History of ocean basins. Oceanic crust is much younger than most continental crust. GRID-Arendal, Postboks 183, 4836, Arendal, Norway, You can also search for this author in Ocean basins form initially by the stretching and splitting (rifting) of continental crust and by the rise of mantle material and magma into the crack to form new oceanic lithosphere. Metamorphism in geology is the changes or adjustments that happens on the composition of rocks to physical and chemical conditions. 1. "}}, {"@type": "Question","name": "What is the morphology of an ocean basin? Then, to grasp either the stage of the sea basin evolution is in the mature stage or not there is a attribute that you can know. exposed mantle cools into oceanic crust; (4) continued spreading In: Engel AEJ, James HL, Leonard BF (eds) Petrologic studies: a volume in honor of A. F. Buddington. It does not store any personal data. Part of Springer Nature. ","acceptedAnswer": {"@type": "Answer","text": "Ocean basins form initially by stretching and splitting (rifting) of continental crust, and the rise of mantle material and magma into the crack to form new oceanic lithosphere. The subduction of oceanic lithosphere explains the locations of deep earthquakes and many volcanoes. The cookies is used to store the user consent for the cookies in the category "Necessary". This kind of movement that allows the formed of rift valley and the splitting of the continent. Do not forget to keep following our website because there will be more interesting article to come that you need to know. Have Fun! An example of the sea that is in the terminal stage is the Mediterranean Sea. rifting Pangaea to form the Atlantic Ocean. 2. Young basins are characterised by the absence of ocean trenches, young ocean crust (<8MA), large areas of continental slope, thick sediments, and large percentage area of mid-ocean ridge rift valley (above 1.7%). The work described in this paper was produced with financial support from GRID-Arendal. In: Udintsev GB (ed) International geological atlas of the Pacific Ocean. What are the four stages of the evolution of an ocean basin from The seafloor of the Gulf of Mexico began forming some 160 to 150 million years ago. American Geophysical Union, San Francisco, Gille ST, Metzger EJ, Tokmakian R (2004) Seafloor topography and ocean circulation. Each layer of the earths structurethe crust, the mantle, the outer core, and the inner corehas a distinct chemical composition and physical state that can have an impact on life on the planets surface. In: Micallef, A., Krastel, S., Savini, A. What does it mean that the Bible was divinely inspired? "}}, {"@type": "Question","name": "Which ocean basin is the youngest? ","acceptedAnswer": {"@type": "Answer","text": "Modern ocean basins contain no oceanic lithosphere older than Jurassic (<200 million years in age).
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