Upper cretaceous. Winton Formation. / -22.3; 143.1. / -51.8; 134.1. The Winton Formation is a Cretaceous geological formation in central-western Queensland, Australia. It is late Albian to early Turonian in age. [2] The formation blankets large areas of central-western Queensland. It consists of sedimentary rocks such as sandstone, siltstone and claystone.

In the Japanese Upper Cretaceous, elasmosaurid remains are fairly common but two short-necked lineages are represented by much smaller number of specimens (e.g. Sato et al., 2012 Carrano et al ...

Upper cretaceous. Request PDF | On May 1, 2014, Lida Xing and others published Upper Cretaceous dinosaur track assemblages and a new theropod ichnotaxon from Anhui Province, eastern China | Find, read and cite all ...

For the Upper Cretaceous they are the Cenomanian, Turonian, Coniacian, Santonian, Campanian, and Maastrichtian. The longest is the Aptian, lasting about 12 million years; the Santonian is the shortest at just under 3 million years.

Maiasaura (from the Greek μαῖα, meaning "good mother" and σαύρα, the feminine form of saurus, meaning "reptile") is a large herbivorous saurolophine hadrosaurid ("duck-billed") dinosaur genus that lived in the area currently covered by the state of Montana and the province of Alberta, Canada, in the Upper Cretaceous Period (mid to late Campanian), about 76.7 million years ago.In open-marine accumulations, a peculiarly common mode of occurrence within Upper Cretaceous hemipelagic (marly chalk) facies of southeastern states, simple floatation of a dinosaurian cadaver into deep-water shelfal areas is the only mechanism involved (Figure 3c; Langston, 1960; Schwimmer, 1996). Such a cadaver, dried on its top side and ...

Nishida M, Nishida H (1985) Petrified woods from the Upper Cretaceous of the Quirquina Island. In Nishida M (ed) A Report of the Botanical Survey to Bolivia and Southern Chile by a Grant-in-Aid for Overseas Scientific Survey, 1983. Faculty of Science, Chiba University. Hasedate Printing Co., Chiba, Japan., pp. 27–36. Google ScholarThe Upper Cretaceous-Lower Paleogene succession at Gabal Qreiya area that covers six rock units, Quseir, Duwi, Dakhla, Tarawan, Esna, and Thebes formations, is reviewed through a high-resolution sequence stratigraphic analysis. Six third-order depositional sequences and their associated surfaces and systems tracts are recognized based on stratigraphic, sedimentological, and high-resolution ...Isolated shark teeth in Upper Cretaceous rocks of the Russian Far East and northwest Pacific region have been noted sporadically from Sakhalin Island (Glikman, 1980;Nessov and Golovneva, 1990 ...The specimen was discovered in the Upper Cretaceous strata of the Huincul Formation (middle Cenomanian-lower Turonian). It includes appendicular and relatively slender elements, with a femoral total length of about 1.9 m long. This taxon shows a unique combination of characters indicating that appendicular bones such as the femur, ischium and ...Cretaceous was a period of intense tectonics placing India in a drifted position against the context of global paleogeography. India was dismembered from Gondwanaland and drifted northward as an island continent leading to many dramatic changes in basinal configurations as a result of the closure of the Gondwana rift basins as well as the …The presence of a small to middle-medium sized abelisaurid in the Upper Cretaceous shows that. Author statement. We the authors of "A New Medium-sized Abelisaurid (Theropoda, Dinosauria) from the late Cretaceous (Maastrichtian) Allen Formation of Northern Patagonia, Argentina." declare that have not submitted this article in another journal ...The Upper Cretaceous in Texas is a proven prolific hydrocarbon system. The “Eaglebine” in Central Texas, which includes both the Eagle Ford and Woodbine intervals, is an emerging play with promising results. However, stratigraphic architecture in this region is poorly understood when compared to that of the Maverick Basin and East Texas Basin.England. Extent. southern and eastern England. The Chalk Group (often just called the Chalk) is the lithostratigraphic unit (a certain number of rock strata) which contains the Upper Cretaceous limestone succession in southern and eastern England. The same or similar rock sequences occur across the wider northwest European chalk ' province '.The Upper Cretaceous Nenjiang lacustrine shale (K 2 n) is one of the most essential hydrocarbon source rocks in NE China with massive OM deposition across the Santonian-Campanian boundary interval, which can be correlated with the terminal stage of the last oceanic anoxic event in the Cretaceous, OAE3. This study focuses on the lower part of ...The Mesozoic extends over 187 million years from the beginning of the Triassic (252 Ma) to the end of the Cretaceous (65.5 Ma). It was a particularly important period for the geology of western Canada. During this time, several continental collisions occurred along the west coast, resulting in the formation of the Rocky Mountains and the.

Remains of juvenile sauropods from the Upper Cretaceous Portezuelo Formation (Neuquén Group), at Barreales Lake (Neuquén Province), are identified and described. The material include a femur (14.6 cm length) and an anterior caudal vertebra (3.1 cm length). Their general morphology allows us to assign these bones to the Titanosauria.The regional Cretaceous structural and isopach/lithofacies maps of the Middle East provide a unique overview of the major tectonic and stratigraphic developments in the leading petroleum basin of the World. The structural map of the Near Top Cretaceous and the Upper Cretaceous isopach show that most of the tectonic elements of the region ...the Upper Cretaceous on the North Slope. 5. Conclusions. 1 Late Cretaceous strata along the lower Colville River,. Alaska, record three distinct depositional ...Only two Cretaceous source rocks exist in the NRB, the Upper Cretaceous Donga and the Upper Cretaceous Yogou source rocks. The source rock of the Yogou Formation is the most prolific in the entire NRB and has basin-wide distribution (Zhou et al., 2017; Xiao et al., 2019). The Donga Formation is predominantly Type III kerogen of very poor to ...

Table of Contents. The Upper Cretaceous deposits of Maryland, by W.B. Clark. The petrography and genesis of the sediments of the Upper Cretaceous of Maryland, by M.I. Goldman. The Upper Cretaceous floras of the world, by E.W. Berry. Correlation of the Upper Cretaceous formations, by W.B. Clark, E.W. Berry, and J.A. Gardner.

Cretaceous Dinosaurs in Parks. Cretaceous (145 to 66 Ma) dinosaur fossils in the NPS are geographically more scattered than the Triassic and Jurassic examples. In recent years, Alaska's parks have become significant for tracks, especially at Denali National Park and Preserve, where hadrosaur tracks are abundant.Bryce Canyon National Park (Utah), has a notable record of microfossils from ...

(S.) scabra was recorded from the upper Albian of the South Rifian Ridges, northwestern Morocco (Benzaggagh, 2016) and Sinaï in Egypte; the Coniacian-Santonian, the Campanian, and probably the Maastrichtian of Sinaï; the Upper Cretaceous of Tunisia, England, Portugal, Bulgaria, Italy, France, Austria, Germany, Madagascar, and India (El-Hedeny ...The Cretaceous Continental Scientific Drilling borehole in the Jiaolai Basin (CCSD-LK-I) provides rare samples from the Upper Cretaceous and Paleocene terrestrial strata. This study aims to establish a chronostratigraphical framework for the terrestrial strata of the Jiaolai Basin by integrating magnetostratigraphy and isotope geochronology.Jul 5, 2023 · The Cretaceous period, which occurred from approximately 145 to 66 million years ago, was characterized by diverse and abundant plant life. Some common plants that lived during this period include: Cycads: These palm-like, cone-bearing plants were widespread during the Cretaceous and are still extant today. Upper Cretaceous mixed carbonate-siliciclastic sequences are among the most important targets for hydrocarbon exploration in the Moghan area, located in the eastern Para-Tethys Basin. Despite of ...Udanoceratops belonged to the Ceratopsia (the name is derived Greek meaning 'horned face'), a group of herbivorous dinosaurs with parrot -like beaks which thrived in North America and Asia during the Cretaceous Period. [1] It is placed within the Leptoceratopsidae, as the only Asian representative at the time, along with the North …

The Mesozoic extends over 187 million years from the beginning of the Triassic (252 Ma) to the end of the Cretaceous (65.5 Ma). It was a particularly important period for the geology of western Canada. During this time, several continental collisions occurred along the west coast, resulting in the formation of the Rocky Mountains and the.Enantiornithes were the dominant avialan clade in the Mesozoic. However, their record for the Upper Cretaceous is scarce. In this study, we present and describe Yatenavis ieujensis gen. et sp. nov., one of the youngest occurrence of an enantiornithine bird. The specimen, the distal half of a right humerus, was found in Chorrillo Formation, southern Santa Cruz Province of Argentina, making it ...Jun 6, 2022 · Occurrences of the Upper Cretaceous sediments in southwestern Slovakia. The numbers refer to the description in the text. (1) Magura nappe system, (2) Jarmuta Fm., Pieniny Klippen Belt, (3) Vienna Basin, (4) Upper Cretaceous atop of Hronic nappe, (5) Chtelnica Fm., Turonian freshwater limestones, (6) Horné Belice Group, (7) Hubina Fm., (8), Horné Belice Group (9) Upper Cretaceous sediments ... The Cretaceous sedimentary basins in Mongolia are grouped into three major depositional provinces (Altai, Khangai-Khentei and Gobi) with ten basins (basins of Great Lakes, Valley of Lakes, Arkhangai, Onon, Choir-Nyalga, Choibalsan, Transaltai Gobi, Umnogobi, Dornogobi and Tamsag), which are all filled by continental deposits with abundant vertebrate and invertebrate fossils as well as plant ...Cenomanian Stage, first of six main divisions (in ascending order) in the Upper Cretaceous Series, representing rocks deposited worldwide during the Cenomanian Age, which occurred 100.5 million to 93.9 million years ago during the Cretaceous Period. Rocks of the Cenomanian Stage overlie those of7 de set. de 2018 ... At the time the Upper Cretaceous portion of the formation was deposited, central western Queensland was at ∼50°S palaeolatitude (Li & Powell, ...May 31, 2023 · Apatite U–Pb dating of dinosaur teeth from the Upper Cretaceous Nemegt Formation in the Gobi Desert, Mongolia: Contribution to depositional age constraints Sedimentation effectively terminated in the upper cretaceous (Santonian/Campanian) simultaneous with the earliest development of the Red Sea which bounds the eastern side of the Western Desert basin. The Cretaceous succession in the Komombo basin Concession as shown in Fig. 4 generally consists of six formations from …The Turonian is, in the ICS' geologic timescale, the second age in the Late Cretaceous Epoch, or a stage in the Upper Cretaceous Series.It spans the time between 93.9 ± 0.8 Ma and 89.8 ± 1 Ma (million years ago). The Turonian is preceded by the Cenomanian Stage and underlies the Coniacian Stage.. At the beginning of the Turonian an oceanic anoxic …Cretaceous deposits in the area have previously produced dinosaur fossils, and the Paleocene occasionally contains reworked Upper Cretaceous fossils. Based on observations of several short-lived, partial exposures in the greater vicinity (e.g., MMNS locality MS.73.030), a persistent phosphatic fossil assemblage occurs in the uppermost part of ...late Upper Cretaceous strata along a west-to-east transect from Virden, New Mexico, to Del Rio, Texas (Fig. 1), using ammonites and inoceramid bivalves, and (2) to provide a provisional faunal zonation for this area that links it with the better known zonation for the Western Interior (Fig. 2). Late Cretaceous ammonite faunas from southwest New ...Scientific Reports - A new ankylosaurid skeleton from the Upper Cretaceous Baruungoyot Formation of Mongolia: its implications for ankylosaurid postcranial evolutionBetween 1999 and 2008 the CGS mapped and published open-file reports covering twenty preliminary 7.5 minute quadrangles in the area between Colorado Springs and Denver. Most of these quadrangles contain exposures of Upper Cretaceous through Eocene strata deposited as synorogenic sedimentary units that filled the Laramide Denver Basin. In this report, Dr. Jon Thorson, who […]The Cretaceous period was the last and longest segment of the Mesozoic era. It lasted approximately 79 million years, from the minor extinction event that closed the Jurassic period about 145 ...Upper Cretaceous to Miocene; skull laterally flattened; choanae in depression in anterior part of pterygoids. Suborder Eusuchia Upper Jurassic to Recent; choanae entirely enclosed by pterygoids. Family Alligatoridae (alligators and caimans) 4 genera and 8 species; teeth of lower jaw fit inside those of upper jaw.A horny beak at the end of the lower jaw met a toothless pad on the upper jaw. In Hypsilophodon there were incisor-like teeth on the upper jaw which closed against a toothless horny beak on the lower, while in Parkosaurus which survived until the end of the Cretaceous period, a horny beak replaced all the front teeth. This dinosaur probably ...Rudist bivalve, Maurens Formation, Upper Cretaceous, southwestern France. Rudists are a group of extinct box-, tube- or ring-shaped marine heterodont bivalves belonging to the order Hippuritida that arose during the Late Jurassic and became so diverse during the Cretaceous that they were major reef-building organisms in the Tethys Ocean, until their …Upper Cretaceous tyrannosauroid material from North America was primarily known from upper Campanian through Maastrichtian formations until the recent discovery of derived tyrannosaurid taxa from lower-to-mid Campanian deposits in the southwestern United States. However, diagnostic material from contemporaneous deposits further north in Alberta ...

It is during the Cretaceous that the first ceratopsian and pachycepalosaurid dinosaurs appeared. Also during this time, we find the first fossils of many insect ...The Czech scientific expedition to northern James Ross Island, Antarctica has tested the use of calcareous nannofossils as a possible tool for stratigraphic correlation of Cretaceous and Neogene strata. Only a few samples with poor nannofossil content gave useful information for biostratigraphy. The Lower Campanian Chiastozygus garrisonii Zone and Gephyrobiscutum diabolum Subzone, respectively ...The specimen under study was collected during field seasons of 1998 as part of a paleontological survey of the upper Cretaceous sedimentary units of the Antarctic Peninsula. It was found partially articulated by Allen J. Kihm, of Minot State University, and is permanently housed in the South Dakota School of Mines and Technology (SDSM …Tiny, ornamented eggs and eggshell from the Upper Cretaceous of Utah represent a new ootaxon with theropod affinities Sara E. Oser, Karen Chin, Joseph J. W. …The first fossils of short-tailed Pterodactyloide a were discovered in the Upper Jurassic strata of Europe. They were assigned to the genus Pterodactylus (Fig. 55; 'flight finger'), and possessed all the typical features of pterosaurs. Many different species of Pterodactylus have been found, varying mainly in size and the shape of the head.Here we provide morphological description of new hadrosaurid specimens (vertebrae, femora) and results of the histological analysis of hadrosaurid femora, proximal fragments of a humerus and a scapula from the Upper Cretaceous high-latitude (palaeolatitude estimate of 75°N) Kakanaut locality (Chukotka, Russia).To further constrain the India-Asia collisional process, a combined paleomagnetic and geochronologic study has been carried out on the Upper Cretaceous Jingzhushan Formation redbeds and the Lower ...The alvarezsaurids are best known from the Upper Cretaceous of the Gobi Desert in Mongolia and northern China, although they are among the rarest theropod dinosaurs there. Even the fragmentary specimen PIN 5838/1, the holotype of Ondogurvel alifanovi described herein is among the most complete alvarezsaurid specimens known from the Gobi Desert.

Hence, Upper Cretaceous petroleum system dynamics is intimately linked to basin geodynamics; where hydrocarbon migration pathways could follow the migration, rotation and tilting of platform and basin blocks. The volume of Lower Fahden and Bahloul source rocks expelled hydrocarbons from the basin kitchens, is much greater than that found in the ...Calcareous nannofossils include the coccoliths and coccospheres of haptophyte algae and the associated nannoliths which are of unknown provenance. The organism which creates the coccosphere is called a coccolithophore, they are phytoplankton (autotrophs that contain chloroplasts and photosynthesise). Their calcareous skeletons …The Malatya Basin is situated on the southern Taurus-Anatolian Platform. The southern part of the basin contains a sedimentary sequence which can be divided into four main units, each separated by an unconformity. From base to top, these are: (1) Permo-Carboniferous; (2) Upper Cretaceous-Lower Paleocene, (3) Middle-Upper Eocene and (4) Upper Miocene.Jul 26, 2022 · The Cretaceous period was the last and longest segment of the Mesozoic era. It lasted approximately 79 million years, from the minor extinction event that closed the Jurassic period about 145 ... These variations result from the reactivation of an ante-Cretaceous NE-SW to E-W preexisting fault, which has controlled the sedimentation of the Cretaceous series in an N-S direction. Likewise, this tectonic inheritance is associated to a well pronounced synsedimentary tectonic activity, which is clearly involved in the structuring of Upper ...Geology -- Maryland, Geology, Stratigraphic -- Cretaceous, Paleontology -- Cretaceous, Paleontology -- Maryland Publisher Baltimore, The Johns Hopkins press Collection cdl; americana Contributor University of California Libraries Language English Volume 2Despite the abundant literature on limnic Cretaceous ostracode faunas, the database on mid-Late Cretaceous taxa is still scarce. The Songliao Basin in northeastern China preserves a diverse assemblage of ostracode fossils from the Santonian-Campanian Nenjiang and Sifangtai formations.In order to better constrain the age and provenance of the Upper Cretaceous Wahweap and Kaiparowits formations in southern Utah, U-Pb SHRIMP ages were obtained for detrital zircons from three sandstone samples, in addition to the first 40 Ar-39 Ar age for the Wahweap Formation, obtained from a devitrified volcanic ash horizon (bentonite). The ash horizon, located ∼40 m above the base of the ...1991. There are described several types of Upper Cretaceous fossil amniote eggs, clutches and eggshells, collected during the Polish-Mongolian Paleontological.Upper Cretaceous. Subdivision of the Cretaceous system according to the IUGS, as of July 2012. The Late Cretaceous (100.5–66 …This upper Cretaceous source provides good oil source rocks in most parts of The Western Desert and moderate-quality gas source rocks in the Umbaraka area. Significant amounts of oil believed to have been generated from this source, are located in the Abu Gharadig and Gindi basins (Schlumberger 1995). Typical oil source rocks are present in non ...Jan 19, 2023 · The Lo Hueco fossil site (Cuenca, Spain) is one of the most relevant localities for the study of Late Cretaceous continental vertebrate faunas from Europe. The fossil record of theropod dinosaurs from this locality is represented by scarce isolated postcranial materials that were preliminarily attributed to abelisaurids and to a possible giant bird, in addition to a large assemblage of ... A large theropod ilium was recently collected from the Upper Cretaceous Honglishan Formation in the Sangequan area of the northern Junggar Basin, Xinjiang, China, which represents the first ...The basin fill thins toward the basin margins (Fig. 1) and is dominated by Cretaceous terrigenous successions. The Upper Cretaceous strata composed of the Qingshankou (K 2 qn), Yaojia (K 2 y), Nenjiang (K 2 n), Sifangtai (K 2 s) and Mingshui (K 2 m) formations (Fig. 1) comprise excellent source rocks in the Qingshankou (K 2 qn) and Nenjiang (K ...The Upper Cretaceous in Texas is a proven prolific hydrocarbon system. The “Eaglebine” in Central Texas, which includes both the Eagle Ford and Woodbine intervals, is an emerging play with promising results. However, stratigraphic architecture in this region is poorly understood when compared to that of the Maverick Basin and East Texas Basin.Upper GSSP ratified. 1991. The Maastrichtian ( / mɑːˈstrɪktiən / mah-STRICK-tee-ən) is, in the ICS geologic timescale, the latest age (uppermost stage) of the Late Cretaceous Epoch or Upper Cretaceous Series, the Cretaceous Period or System, and of the Mesozoic Era or Erathem. It spanned the interval from 72.1 to 66 million years ago.In this paper, we demonstrate a down-paleoslope shift in detrital zircon provenance signatures correlated with shallow-marine lithofacies patterns from the Upper Cretaceous La Anita Formation and underlying continental slope lithofacies of the Alta Vista Formation (Magallanes-Austral Basin, southern Patagonia).

The Cretaceous-Paleogene extinction that wiped out the nonavian dinosaurs 66 million years ago was correlated with two extreme events: The Chicxulub impact occurred at roughly the same time that massive amounts of lava were erupting from the Deccan Traps (see the Perspective by Burgess). ... providing complete coverage of the upper four Deccan ...

Buying a new home is one of the most rewarding things you can do. And then comes the work — more than you think if you've bought a "fixer-upper." Make sure you ask the right questions to make sure the work is worth it. The DIY experts at St...

Cretaceous Dinosaurs in Parks. Cretaceous (145 to 66 Ma) dinosaur fossils in the NPS are geographically more scattered than the Triassic and Jurassic examples. In recent years, Alaska’s parks have become significant for tracks, especially at Denali National Park and Preserve, where hadrosaur tracks are abundant.Bryce Canyon …More information: Brian A. Atkinson et al, Ancient diversity and turnover of cunninghamioid conifers (Cupressaceae): two new genera from the Upper Cretaceous …Meniscoessus robustus – Named by Othniel Charles Marsh in 1889. Remains were discovered in Maastrichtian (Upper Cretaceous) and possibly Paleocene strata of Wyoming, Montana, and South Dakota, USA, and the St. Mary's River Formation of Canada. The weight of this species is estimated to have been about 3.3 kilograms (7.3 lb).section of Cretaceous and lower Tertiary rocks from the Book Cliffs near Price, Utah, to the Colorado-Utah State line. The projected outcrop equivalent of the Upper Cretaceous section in the Wilkin Ridge well is between the Sunnyside and Green River locations (figs. 1,2), and, although analogies can be drawn between the outcrop andThe Upper Cretaceous/Paleogene marine sedimentary rocks of the Moroccan High Atlas host phosphate-rich sediments bracketed by calcareous nannofossil Zones (NP4-NP9) of late Danian to Thanetian age.The Kem Kem Group (commonly known as the Kem Kem beds) is a geological group in the Kem Kem region of eastern Morocco, whose strata date back to the Cenomanian stage of the Late Cretaceous.Its strata are subdivided into two geological formations, with the lower Ifezouane Formation and the upper Aoufous Formation, with the Gara Sbaa Formation …Nishida M, Nishida H (1985) Petrified woods from the Upper Cretaceous of the Quirquina Island. In Nishida M (ed) A Report of the Botanical Survey to Bolivia and Southern Chile by a Grant-in-Aid for Overseas Scientific Survey, 1983. Faculty of Science, Chiba University. Hasedate Printing Co., Chiba, Japan., pp. 27–36. Google ScholarGeographical and geological situation of the Oliete sub-basin (Teruel, Spain). a Mesozoic basins of the Iberian Peninsula. The square indicates the location of the …

doctorate ceremonycash 5 ez match nckansas state scheduledramatizeme me Upper cretaceous dollar500 apartments for rent in laurel md [email protected] & Mobile Support 1-888-750-8868 Domestic Sales 1-800-221-5533 International Sales 1-800-241-2959 Packages 1-800-800-5120 Representatives 1-800-323-7684 Assistance 1-404-209-7631. The Cretaceous Period is considered the archetypical greenhouse interval, yet there is mounting evidence for intermittent cooler climatic phases throughout this geologic span. Few continental climate histories exist for the Cretaceous south of the paleoequator, and fewer still for Africa during this time. The Cretaceous Galula Formation is one of the few exposed fossiliferous continental .... megalink twitter This TDP expedition targeted recovery of excellently preserved microfossils (foraminifera and calcareous nannofossils) for Late Cretaceous paleoclimatic, ...The Upper Cretaceous sedimentary sequence exposed at the studied area was subdivided into seven sedimentary facies (from F1 to F7) exhibiting either coarse and/or fining asymmetrical cycles (Fig. 3). Facies from F1 to F4 are belonging to the Quseir Formation, while those from F5 to F7 are comprising the overlying Duwi Formation ( Fig. 3 ). u copenhagenidea in education The few Cretaceous localities are widespread, with the two Lower Cretaceous sites coming from Argentina and Japan and the sole Upper Cretaceous locality, described herein, being from Montana. Cenozoic occurrences, as with modern limulid distributions, are limited to Asia and North America. cjc off road ram 2500is qt open 24 hours New Customers Can Take an Extra 30% off. There are a wide variety of options. The mid-Cretaceous is often regarded as the warmest period in Earth's history, reaching the Cretaceous Thermal Maximum in the Turonian (89.8-93.9 million years ago; Wilson et al., 2002), although increasingly evidence suggests a much more complex picture with cool events throughout the mid to Late Cretaceous (Veizer et al., 2000, Weissert and ...Choristoderes, sometimes informally called champsosaurs, are a clade of semiaquatic diapsids with an extremely long stratigraphic range. The first choristoderes were described in the late 1800s, but until the early 1990s they were only known from the Upper Cretaceous and Paleocene of North America and Europe, a span of about 15 million years.Research highlights The provenance of upper Cretaceous strata in the Tethys Himalaya provides significant constraints on the closing of the Neo-Tethys Ocean and the initial India-Asia collision. We carried out a detailed provenance study on the upper Cretaceous clastic sedimentary rocks of the northern Tethys Himalaya, near Gyangze, southern Tibet. Provenance drastically changed from the ...