bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sialotripsy as a treatment option for patients with salivary stone disease
Authors: Ivachenco A. V. , Yablokov A. E. , Filatova Е. О. , Monakov V. A. 
Published: October 2021

Background. The pathologies of the salivary glands are very diverse. Salivary stone disease occupies a special place among diseases of the salivary glands of a non-neoplastic nature. The incidence of salivary stone disease is extremely extensive and accounts for up to 85% of all pathologies of the salivary glands.Objective. Improvement of minimally invasive methods of treatment of salivary stone disease, which does not lead to excision of the gland.Material and methods. On the basis of the Clinics of the Samara State Medical University of the Ministry of Health of Russia, in the period from 2010 to 2020, a clinical group was formed, consisting of 193 patients with salivary stone disease of various localization. The age of the patients ranged from 16 to 84 years. All patients were therapeutically examined at the preoperative stage, voluntary informed consent was signed. Shockwave sialotripsy was performed in 95 patients of the main group (in 64 patients the calculus was located in the submandibular salivary gland, in 31 patients – in the parotid salivary gland). For lithotripsy, we used a lithotripter apparatus "Edap" (France) and "Wolf" (Germany).Results. The analysis of the results obtained as a result of the study made it possible to draw a conclusion about reasonably better results of removal of calculi in the ducts of the salivary glands using the lithotripter "Swiss LithoClast® Master" (Switzerland). At the first visit and the therapeutic effect of the lithotripter, all patients suffering from bouts of salivary colic showed complete cessation.Conclusion. Thus our study, which was devoted to the study of the results of various methods of treating patients with salivary stone disease showed that sialolithotripsy using special narrowly targeted devices for crushing and subsequent excretion of salivary calculi allows to achieve the best results at present.
Natural Progression and Symptomatic Management of Tarsal-Carpal Coalition Syndrome
Authors: Berg Ari R. , Pletcher Beth A. , Edobor-Osula O. Folorunsho 
Published: October 2021

Case:
Tarsal-carpal coalition syndrome (TCCS) is a disorder identified by fusion of the carpals, tarsals, and phalanges of the hands and feet. We describe a case of an 11-year-old girl who has been followed at our outpatient clinic from the age of 8 months.

Conclusion:
Although patients with TCCS can experience a wide range of symptoms, the primary complaint arises from the foot deformity and associated pain. Using advanced imaging such as 3D computed tomography reconstruction and genetic testing, this report details the clinical, genetic, and radiographic characteristics of the disorder. We highlight the natural progression and symptomatic management of TCCS.
Retroperitoneal Fibrosis After Spinal Surgery
Authors: Buijs Sanne M. , Hendriksz Tadek R. , van Bommel Eric F.H. 
Published: October 2021

Case:
Retroperitoneal fibrosis (RPF) is a rare chronic fibroinflammatory disorder with typically unknown etiology (i.e., idiopathic). However, several causes have been identified, including retroperitoneal injury or inflammation. In this study, we describe 2 patients who developed RPF complicated by hydroureteronephrosis after (combined) anterior lower interbody fusion (ALIF) and posterior spine fusion. We also reviewed 6 additional cases from the literature of suspected RPF development after spinal surgery. In these cumulative 8 cases, ALIF was the common denominator.

Conclusion:
RPF may develop after ALIF and should be considered a potential longer term complication of this procedure.
Cozen's Phenomenon After Repair of a Medial Collateral Ligament Periosteal Avulsion in a Pediatric Athlete
Authors: Hobson Taylor E. , Mortensen Alexander J. , Metz Allan K. , Aoki Stephen K. 
Published: October 2021

Case:
A 13-year-old boy sustained an acute, grade III medial collateral ligament (MCL) distal periosteal avulsion injury while playing noncontact football. Treatment consisted of diagnostic knee arthroscopy with open physeal-sparing MCL repair. At approximately 1-year follow-up, new development of genu valgum in the operative extremity was noted. After 8 months of nonoperative treatment with deformity progression, the patient underwent correction with proximal medial tibial hemiepiphysiodesis.

Conclusion:
Although Cozen's phenomenon commonly occurs after a proximal metaphyseal tibial fracture in children aged 2 to 7 years, it can occur as a rare complication of MCL injury/repair and remains a possible outcome in skeletally immature patients.
Geological Evolution of the Central Marib-Shabwa Basin, Yemen
Authors: Brannan Joe , Sahota Gurdip , Gerdes Keith D. , Berry Jonathan A.L. 
Published: October 2021

ABSTRACT
The Marib-Shabwa Basin is part of an extensive west-northwest oriented, petroliferous rift system straddling Southern Arabia and the Horn of Africa. The history of the basin has been unravelled using well and seismic data gathered by Nimir Petroleum Company between 1992 and 1995. Four megasequences have been defined using seismic data and these have been further subdivided using integrated well and seismic information. A fifth megasequence is identified from regional information but has been eroded within Nimir’s Block 4. Pre-Rift Megasequence sedimentation began in the Middle Jurassic when transgression from the southeast resulted in the deposition of paralic clastic rocks and shallow-marine carbonates of the Kohlan and Shuqra formations. Rapid deepening in the Oxfordian resulted in the deposition of anoxic shales in the basin immediately prior to rifting. The Syn-Rift Megasequence is of Kimmeridgian-Tithonian age. Adjacent to basin margins and elevated intra-basinal highs, thick turbidites of the Lam Formation accumulated. However, over much of Block 4, rift geometries produced sediment-starved areas where Madbi Formation carbonates accumulated. As rift topography was infilled, fine-grained clastics of the upper Lam Formation spread throughout the basin. Following minor fault reactivation, rifting stopped in the mid-Tithonian. Carbonate deposition (Ayad Formation) in early post-rift times was rapidly followed by isolation of the basin from the open ocean to the southeast. As a result an extensive salt basin (Sabatayn Formation) developed throughout the Marib-Shabwa system. However the salt basin was short-lived and marine carbonate deposition was re-established by late Tithonian times. Initially these carbonates were very clean (Lower Naifa Formation) but the clastic component gradually increased (Upper Naifa Formation) before sedimentation abruptly stopped in the Berriasian.
The Ayad, Sabatayn, Lower Naifa and Upper Naifa formations comprise Post-Rift Megasequence 1. Sedimentation resumed in the Barremian (Post-Rift Megasequence 2) with the deposition of mixed marine clastics and carbonates of the Qishn Formation. Sediment loading at this time mobilised the salt which flowed updip and formed a series of elongate ridges overlying the footwall crests of major fault blocks. As a result, Qishn clastics were deposited in a series of discrete, elongate salt withdrawal basins. Paralic clastics prograded eastwards into the accommodation space left by retreating salt. The most distal basins were initially starved and contain condensed limestones. These basins were infilled by Tawilah Group fluvial sandstones which constitute the upper part of Post-Rift Megasequence 2. Following resubmergence in the Early Tertiary the widespread Hadramaut Group carbonates and evaporites (Post-Rift Megasequence 3) were deposited but uplift and erosion in the Late Tertiary has removed them from large parts of the Shabwa Basin, including Block 4.
The 3-D MegaProject in Petroleum Development Oman: A 3-D Data Management Concept for Seismic, Workstation Support and Interpretation
Authors: Ligtendag Maarten H.P. 
Published: October 2021

ABSTRACT
The concession of Petroleum Development Oman (PDO) is covered with some 30,000 square kilometres of 3-D seismic data, consisting of some 90 individual surveys, acquired and processed since 1984. With the 3-D coverage rapidly growing, more and more continuous coverage over large parts of the PDO concession is established. Traditionally surveys were processed on a survey-by-survey basis, incorporating some data from neighbouring surveys whenever possible. This approach resulted in a patchwork of often overlapping stand-alone 3-D projects, all with different datums, amplitude normalisations and processing histories.
PDO strongly believes in the value of large integrated interpretation projects and the information that can be gained by using them. In order to achieve this the 3-D MegaProject was conducted during part of 1996 and 1997. As part of the 3-D MegaProject all 3-D seismic surveys acquired to date by PDO have been harmonised and merged. The concession area has been split up into four separate 3-D MegaGrids according to the dominant acquisition direction. Within each MegaGrid a consistent in-line and cross-line numbering is used. The data are stored in cubes of 10 by 10 kilometres, referred to as MegaCells, which serve as the 3-D seismic data library. In the future, processing and merging of newly-acquired seismic data will follow the same procedures according to the common framework of MegaCells.
Back-thrust Origin of the Hafit Structure, Northern Oman Mountain Front, United Arab Emirates
Authors: Noweir M. Atef 
Published: October 2021

ABSTRACT
The Tertiary structures of the Northern Oman Mountains are marked by a discontinuous belt of jebels peripheral to their western margin. Detailed field mapping of the northern Hafit structure in the Northern Oman Mountains indicates that the structures consist of two en echelon anticlines, the main Hafit Anticline to the south, and the Al-Ain Anticline to the north. Both anticlines are related to the same deformation event. Structural analysis, using geometric balancing techniques suggests that the Hafit structure developed over a west-vergent basal thrust. The depth to detachment of the thrust indicates that the basal detachment occurs at different stratigraphic positions and progressively increases northward, while the magnitude of deformation increases southward. The thrust wedges back to the east and propagated upward through the structure during a major Tertiary deformational event resulting in an east-vergent, fault-propagation fold. The recent interpretation that the Hafit structure grew as a detachment fold above a basal decollement and synchronously with sedimentation, is at variance with structural evidence from the Hafit area. It is believed that the Hafit structure formed after the Miocene time.
Design and Development of Information Systems for the Geosciences: An Application to the Middle East
Authors: Seber Dogan , Steer David , Sandvol Eric , Sandvol Christine , Brindisi Carrie , Barazangi Muawia 
Published: October 2021

ABSTRACT
As our understanding grows of how the Earth functions as a complex system of myriad interrelated mechanisms, it becomes clear that a revolutionary and novel approach is needed to study and understand it. In order to take advantage of an ever-growing number of observations and large data sets and to employ them efficiently in multidisciplinary studies aimed at solving earth system science problems, we are developing a comprehensive Solid Earth Information System (SEIS). The complex nature of the solid earth sciences raises serious challenges for geoscientists in their quest to understand the nature and the dynamic mechanisms at work in the planet. SEIS forms a first step in developing a broader and more comprehensive information system for earth system sciences designed for the needs of the geoscientists of the 21st century. In a way, SEIS is a step towards the Digital Earth. Application of SEIS to the complex tectonics of the Middle East shows that information systems are crucial in multidisciplinary research studies and open new avenues in research efforts. SEIS includes an Internet module that provides open access to anyone interested. Researchers as well as educators and students can access this knowledge and information system at http://atlas.geo.cornell.edu.
Structural Style and Stratigraphy of the Huwayyah Anticline: an Example of an Al-Ain Tertiary Fold, Northern Oman Mountains
Authors: Noweir M. Atef , Alsharhan Abdulrahman S. 
Published: October 2021

ABSTRACT
Detailed field mapping and structural studies in the Jebel Auha-Jebel Huwayyah area northeast of Al-Ain indicate that folding of neoautochthonous sedimentary rocks produced the north-northwest-trending Huwayyah Anticline. The anticline at the surface is composed of the Maastrichtian Qahlah and Simsima formations unconformably overlain by shallow-marine carbonate rocks that are correlated on faunal grounds with the Middle Eocene Dammam Formation. The investigation of the Huwayyah Anticline has identified three microfacies of bioclastic packstone, nummulitic packstone, and nummulitic packstone-grainstone in the local Dammam Formation. Diagenesis in the form of silicification, cementation, recrystallization, dissolution, compaction and neomorphism is widespread.
The Huwayyah Anticline is a fault-propagation fold above a thrust ramp. The ramp developed from a pre-existing Late Cretaceous basal thrust within the Semail Ophiolite on the Oman Mountain Front. The anticline was formed as a result of regional compressive deformation due to rejuvenation of the Late Cretaceous thrust in post-Middle Eocene times. Westward-directed high-angle reverse faults of Jebel Auha trend parallel to the fold axis of the anticline. The Auha faults probably originated as west-dipping thrusts on the western flank of the anticline and were subsequently rotated to their present attitude as the flank of the anticline became steeper due to compression from the east.
A possible Albian impact crater at Murshid, southern Oman
Authors: Levell Bruce , Richard Pascal , Hoogendijk Folco 
Published: October 2021

ABSTRACT
During interpretation of a 3-D seismic survey in southern Oman a solitary, 2.5-km-wide circular basin with a central peak and raised rim was identified in the subsurface 35 km west of the Marmul oil field. The feature is the only one of its kind in the area. The basinal structure is probably of Late Cretaceous (Albian) age and the regional geology strongly suggests that it is neither a volcanic crater nor related to salt-dome tectonics or salt dissolution. It possibly represents a crater formed by a terrestrial impact event and has been named the Murshid crater. This report does not constitute a detailed investigation of the possible impact crater but rather records the 3-D seismic observations and the drilling that has taken place near the structure so far.
Stratigraphic architecture of the northern Oman continental margin - Mesozoic Hamrat Duru Group, Hawasina complex, Oman
Authors: Blechschmidt Ingo , Dumitrica Paulian , Mater Albert , Krystyn Leopold , Peters Tjerk 
Published: October 2021

ABSTRACT
The Triassic to Late Cretaceous deep-marine sediments of the Hamrat Duru Group, Oman Mountains, represent a subunit of the Hawasina nappe-complex which was deposited in a deep marine basin. During the Late Cretaceous SSW-directed obduction of the Semail Ophiolite, the Hawasina complex was emplaced onto the autochthonous cover of the Arabian basement, while the original configuration of the basin was destroyed.
New lithostratigraphic results and high-resolution radiolarian and conodont biostratigraphy lead to a revised stratigraphic scheme of the Hamrat Duru Group which conforms with the standard stratigraphical nomenclature. The Hamrat Duru Group is divided into six formations: (1) The Early Triassic (Olenekian) to Late Triassic (Upper Norian) Zulla Formation (Limestone and Shale Member, Sandstone and Shale Member, Radiolarian Chert Member and Halobia Limestone Member); (2) The Late Triassic (late Norian to Rhaetian) Al Ayn Formation; (3) The Early Jurassic (late Pliensbachian) to Middle Jurassic (early Callovian) Guwayza Formation (Tawi Sadh Member and Oolitic Limestone Member); (4) Middle Jurassic (Callovian) to Late Cretaceous (Cenomanian?) Sid’r Formation (Lower Member, Upper Member); (5) Late Cretaceous (Cenomanian? to Santonian?) Nayid Formation; and (6) Late Jurassic (early Callovian) to Early (Late?) Cretaceous Wahrah Formation. Most of the lithostratigraphic units (formations and members) show isochronous boundaries between the different outcrop areas.
The stratigraphic architecture of the Hamrat Duru Group megasequence is controlled by alternating siliciclastic and carbonate sedimentation possibly related to the second-order sea-level variations. The sediments accumulated on the continental rise of the Arabian margin mostly by submarine sediment-gravity flows and hemipelagic to pelagic rainout. A close relationship of the evolution of the Arabian Platform and the adjoining slope and basinal environments is evident. Changes in carbonate supply, oceanographic circulation and/or variations in silica productivity resulted in two distinct phases of radiolarian sedimentation. The first phase corresponds to the Triassic late Anisian-early Norian time interval; the second started in the Early Jurassic late Pliensbachian and lasted, with some interruptions, up to the Late Cretaceous Coniacian. The litho- and biostratigraphic similarities between the Mesozoic Hamrat Duru Basin of the northern/central Oman Mountains and the Mesozoic Batain Basin of northeastern Oman are seen as related to Neo-Tethys-wide palaeoceanographic changes and suggest a strong interdependence of the two basins with the evolution of the Arabian Platform.
Heavy minerals in the Wajid Sandstone from Abha-Khamis Mushayt area, southwestern Saudi Arabia: implications on provenance and regional tectonic setting
Authors: Hussain Mahbub , Babalola Lameed O. , Hariri Mustafa M. 
Published: October 2021

ABSTRACTThe Wajid Sandstone (Ordovician-Permian) as exposed along the road-cut sections of the Abha and Khamis Mushayt areas in southwestern Saudi Arabia, is a mediun to coarse-grained, mineralogically mature quartz arenite with an average quartz content of over 95%. Monocrystalline quartz is the dominant framework grain followed by polycrystalline quartz, feldspar and micas. The non-opaque heavy mineral assemblage of the sandstone is dominated by zircon, tourmaline and rutile (ZTR). Additional heavy minerals, constituting a very minor fraction of the heavies, include epidote, hornblende, and kyanite. Statistical analysis showed significant correlations between zircon, tourmaline, rutile, epidote and hornblende. Principal component R-mode varimax factor analysis of the heavy mineral distribution data shows two strong associations: (1) tourmaline, zircon, rutile, and (2) epidote and hornblende suggesting several likely provenances including igneous, recycled sedimentary and metamorphic rocks. However, an abundance of the ZTR minerals favors a recycled sedimentary source over other possibilities.Mineralogical maturity coupled with characteristic heavy mineral associations, consistent north-directed paleoflow evidence, and the tectonic evolutionary history of the region indicate a provenance south of the study area. The most likely provenances of the lower part (Dibsiyah and Khusayyan members) of the Wajid Sandstone are the Neoproterozoic Afif, Abas, Al-Bayda, Al-Mahfid, and Al-Mukalla terranes, and older recycled sediments of the infra-Cambrian Ghabar Group in Yemen to the south. Because Neoproterozic (650-542 Ma) rocks are not widespread in Somalia, Eritrea and Ethiopia, a significant source further to the south is not likely. The dominance of the ultrastable minerals zircon, tourmaline and rutile and apparent absence of metastable, labile minerals in the heavy mineral suite preclude the exposed arc-derived oceanic terrains of the Arabian Shield in the west and north as a significant contributor of the sandstone. An abundance of finer-grained siliciclastic sequences of the same age in the north, is consistent with a northerly transport direction and the existence of a deeper basin (Tabuk Basin?) to the north. The tectonic and depositional model presented in this paper differs from the existing model that envisages sediment transportation and gradual basin filling from west to east during the Paleozoic.
Paleozoic petroleum systems of Saudi Arabia: a basin modeling approach
Authors: Abu-Ali Mahdi , Littke Ralf 
Published: October 2021

ABSTRACT
The major Paleozoic petroleum system of Saudi Arabia is qualitatively characterized by a proven Silurian (Qusaiba Member, Qalibah Formation) source rock, Devonian (Jauf Formation), Permian and Carboniferous (Khuff and Unayzah formations) reservoirs, a laterally extensive, regional Permian seal (basal Khuff clastics and Khuff evaporites), and four-way closed Hercynian structures. Hydrocarbons found in these systems include non-associated gas in Eastern Arabia and extra light oil in Central Arabia. A basin modeling approach was used to quantify important aspects of the petroleum system. Firstly, seventeen regional wells were selected to establish a reference tool for the three-dimensional (3-D) basin model using multiple one-dimensional (1-D) models. This was accomplished by studying core material from source rocks and other lithologies for thermal maturity and kerogen quality. The major emphasis was on the Silurian section, other Paleozoic intervals and to a lesser extent on the Mesozoic cover from which only few samples were studied. Although vitrinite macerals, solid bitumen, and other vitrinite-like particles were not abundant in most of the investigated samples, enough measured data established valid maturity-depth trends allowing for calibrated models of temperature history. Sensitivity analyses for maturity support the view that thermal boundary conditions and Hercynian uplift and erosion did not greatly influence the Paleozoic petroleum systems. Secondly, a 3-D basin model was constructed using major geologic horizon maps spanning the whole stratigraphic column. This model was used to gain insight into the general maturity distribution, acquire a better control of the model boundary conditions and investigate charge, drainage, migration and filling history of the main Paleozoic reservoirs. The 3-D hydrocarbon migration simulation results qualitatively account for the present gas accumulations in the Permian-Early Triassic Khuff and Carboniferous-Permian Unayzah reservoirs in the Ghawar area. This kind of study illustrates the importance of basin modeling when used with other geologic data to describe petroleum systems. It provides a predictive exploratory tool for efficiently modeling hydrocarbon distribution from known fields. Real earth models can only be described in 3-D as pressure variations and fluid movements in the subsurface are impossible to address in 1-D and 2-D domains.