The Middle to Upper Triassic “TAG-I” sandstones were deposited in a series of intra- and pericratonic basins that developed after the Hercynian orogeny on the Saharan Platform margin. They form a broad facies belt of continental clastics that extend from Morocco to Egypt. Recent wells drilled in Eastern Morocco have proven economic gas flow rates from Late Triassic continental sandstones—sourced from Palaeozoic shales and trapped with post-Hercynian rift structures. The play bears many similarities to the prolific TAG-I play in the Berkine Basin and offers potential for extension of this petroleum system farther west into Morocco. Reservoir quality and thickness is a key uncertainty, and better understanding of the depositional systems and provenance is critical to reducing uncertainty and predicting where the sandstones offer viable exploration target.

本文为公开发表的三篇主题为“东非的构造和含油气系统”的论文提供了简要的概述,随后是四篇在2018年2月发表的主题为油气地球科学的论文.本文的第一部分主要讲述区域构造,第二部分由关于盆地和区域的论文组成,包括索马里近海(Davidson等)、坦桑尼亚近海(Sansom)和莫桑比克近海(Butt&Gould).关于该区域的更多论文正在写作过程中,这些论文最终都将并人一个在线主题集中.

This paper provides an overview of a series of papers to be published within two issues of Petroleum Geoscience in 2018 expressing the theme ‘tectonics and petroleum systems of East Africa’. These papers partly result from the Geological Society of London’s Petroleum Group conference in April 2016 on ‘East Africa; From Research to Reserves’. The theme of this conference highlighted the advances that have been made since a previous East Africa conference as a result of the recent major exploration efforts. This issue (February 2018) concentrates on the regional tectonics and include overviews of our current understanding of Permian to Mesozoic rifting (Macgregor), Tertiary rifting (Purcell), the plate tectonic model (Reeves), and of the development of the East African margin (Davison & Steel). The August 2018 issue is planned to include more basin and regional specific papers on the Kenyan rift system, offshore Somalia, offshore Tanzania and offshore Mozambique.

Journal of Pediatric Gastroenterology and NutritionVolume 39, Issue S1 p. S325-S326 ABSTRACTS: Poster Session Abstracts P0705 BOWEL WALL THICKNESS AS A PREDICTOR OF DISEASE SEVERITY IN CHRONIC INFLAMMATORY COLITIS A. R. Bremner, A. R. Bremner Division of Infection, Inflammation and Repair, University of Southampton Medical School, Southampton, United KingdomSearch for more papers by this authorJ. D. Argent, J. D. Argent Paediatric Radiology, Southampton University Hospitals NHS Trust, Southampton, United KingdomSearch for more papers by this authorM. Griffiths, M. Griffiths Paediatric Radiology, Southampton University Hospitals NHS Trust, Southampton, United KingdomSearch for more papers by this authorJ. J. Fairhurst, J. J. Fairhurst Paediatric Radiology, Southampton University Hospitals NHS Trust, Southampton, United KingdomSearch for more papers by this authorR. M. Beattie, R. M. Beattie Paediatric Medical Unit, Southampton University Hospitals NHS Trust, Southampton, United KingdomSearch for more papers by this author A. R. Bremner, A. R. Bremner Division of Infection, Inflammation and Repair, University of Southampton Medical School, Southampton, United KingdomSearch for more papers by this authorJ. D. Argent, J. D. Argent Paediatric Radiology, Southampton University Hospitals NHS Trust, Southampton, United KingdomSearch for more papers by this authorM. Griffiths, M. Griffiths Paediatric Radiology, Southampton University Hospitals NHS Trust, Southampton, United KingdomSearch for more papers by this authorJ. J. Fairhurst, J. J. Fairhurst Paediatric Radiology, Southampton University Hospitals NHS Trust, Southampton, United KingdomSearch for more papers by this authorR. M. Beattie, R. M. Beattie Paediatric Medical Unit, Southampton University Hospitals NHS Trust, Southampton, United KingdomSearch for more papers by this author First published: 01 June 2004 https://doi.org/10.1002/j.1536-4801.2004.tb13135.x Submitted by: [email protected] Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Reference(S): Haber et al, “Ultrasonographic findings correspond to clinical, endoscopic, and histologic findings in inflammatory bowel disease and other enterocolitides.” J Ultrasound Med 2002 21: 375–82. 10.7863/jum.2002.21.4.375 PubMedWeb of Science®Google Scholar Volume39, IssueS1June 2004Pages S325-S326 ReferencesRelatedInformation

Pain and swelling of the medial end of the clavicle may be associated with radiographic sclerosis. The commonest causes are osteoarthritis, infection and condensing osteitis of the clavicle. Distinguishing between these clinically and radiologically can be difficult but computed tomography (CT) and magnetic resonance imaging (MRI) are often useful for their differentiation. In this review, the typical imaging features of these conditions are presented with an emphasis on the CT and MRI appearances. These are correlated with clinical features, which together should enable a confident diagnosis to be made.

AIM:To establish the diagnostic accuracy and diagnostic usefulness of the chest radiograph in asymptomatic neonates with cardiac murmurs.PATIENTS AND METHODS:The chest radiographs of 68 asymptomatic neonates with cardiac murmurs were analysed retrospectively. The radiographs were anonymized and then evaluated for the presence or absence of cardiac disease by six radiologists, three who regularly interpret neonatal chest radiographs and three who do so infrequently. The eventual diagnosis for each neonate and the impact of the chest radiograph and original report on patient management were established by review of the clinical case notes.RESULTS:The results for each observer were expressed in 2 x 2 contingency tables and statistical analysis was performed using Fisher's exact test. The radiologists who were experienced in reporting neonatal chest radiographs achieved statistically significant results (P=0.003, P=0.002 and P=0.007) compared with those who were less experienced (P=0.13, P=0.16 and P=0.09). Review of the case notes established that the chest radiograph and original report did not influence clinical management in any of the 68 cases studied.CONCLUSIONS:Radiologists who frequently report neonatal chest radiographs achieve high accuracy in differentiating cardiac from non-cardiac disease. However, inaccuracies are unavoidable as radiological evidence of cardiac disease is often not present. A false-positive result could cause undue anxiety while a false-negative report could result in the omission of further investigations. Furthermore, a chest radiograph is unlikely to provide the definitive diagnosis. Chest radiographs did not appear to influence patient management in this study and cannot be recommended in the initial evaluation of the asymptomatic neonate with a heart murmur.

Integration of regional seismic interpretation, sonic velocity, vitrinite reflectance and apatite fission-track analysis (AFTA ® ) studies has demonstrated that the western region of the Moray Firth rift arm (UK North Sea) experienced pronounced exhumation during the Cenozoic. Although this basin is usually considered to have experienced regionally uniform exhumation, interpretation of new seismic data has revealed the presence of a major system of post-Jurassic normal faults, with throws commonly in the range of 10–300 m and locally exceeding 1 km. New, high-quality seismic data are used in combination with AFTA and vitrinite reflectance data to investigate the role of extensional faulting during exhumation of this basin. Results of this interpretation not only confirm the offsets across major faults, but also show that greater exhumation and erosion occurred on their footwalls than on their hanging walls. We conclude that the localized, differential exhumation is the result of superposition of local or short-spatial-wavelength extensional tectonics upon regional, long-spatial-wavelength exhumation. These results suggest that differential exhumation might be characteristic of unroofed rift basins where normal faults subcrop the exhumation-related unconformity and that, in such cases, thermal histories from footwall locations may yield inaccurate predictions of the burial history of hanging-wall depocentres. Inaccurate burial histories will lead to a misrepresentation of the thermal history, with an impact on the estimation of hydrocarbon source rock maturity for petroleum basins.

Interpretation of high-quality seismic data, constrained by exploration wells, provides insights into controls on the stratigraphic architecture and deep-water sedimentary processes that governed deposition of the Lower Cretaceous Punt Sandstone Member in the Inner Moray Firth Basin. We suggest a model of deposition in which sediment provenance from the north and west progressively filled depositional accommodation in proximal depocentres before spilling into more distal areas via linear, confined and incised channel complexes. As well as giving important clues into post-rift depositional processes in the basin, and a well-imaged ancient analogue for the deposition of massive deep-water sands, the seismic and stratigraphic data may also provide important insights into factors governing the poorly imaged Lower Cretaceous sands in neighbouring basins of the North Sea.

Extensional fault arrays are often dominated by a single fault vergence, forming ‘domino’ fault blocks. The polarity of faults can be defined as synthetic or antithetic in relation to the overall shear sense across the fault system. Observations of the geometry of a number of field examples of extensional fault arrays vs. the lithologies (as a proxy for strength profile) show that synthetic extensional arrays from the North Sea and Bristol Channel Basin detach on salt layers, whereas examples of antithetic arrays from the North Sea are found to pin out downwards and no basal detachment is present. In the Sacramento Mountains core complex of the Basin and Range, the major low-angle detachment fault post-dates antithetic shears that evolved at mid-crustal level and are preserved in the granitic footwall. These antithetic shears were cut by the main low-angle detachment, whose hanging wall disintegrated into an array of synthetic faults. The kinematics of synthetic vs. antithetic arrays dictate that faults within synthetic arrays must branch onto a basal detachment, whereas faults within antithetic arrays may die out downwards. Therefore, the results emphasise that fault polarity in domino arrays may be related to the boundary conditions of the fault blocks and therefore may be diagnostic of the strength profile of the faulted stratigraphy.

Subcutaneous granuloma annulare (SGA) produces benign nodules in otherwise healthy children. The histology of the lesions may be indistinguishable from rheumatoid nodules. However, in children the lesion of SGA is not accompanied by connective-tissue disease. We report 4 patients with SGA. There were three girls and one boy ranging in age from 4 to 15 years. All the children presented with a solitary lesion on the lower limb. A cutaneous lesion was also present in case 4. In only one patient (case 4) was there a history of trauma. There was no relevant past medical history. Routine laboratory tests were normal (including ESR and auto-immune profile). A computed tomography (CT) scan with intravenous contrast was performed in all patients. The CT features were those of soft tissue masses of variable attenuation and enhancement with inconsistent infiltration into surrounding fat. There appear to be no specific CT features which distinguish this benign lesion from a more sinister one. Excisional biopsy was performed in all cases. In children, SGA should be included in the differential diagnosis of soft-tissue masses, particularly in the lower extremity.