31,426 research outputs found
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
SHRIMP U-Pb monazite dating of 1600-1580 Ma amphibolite facies metamorphism in the southeastern Mt Isa Block, Australia
No full textCopyright © 2002 Taylor and FrancisSHRIMP U-Pb monazite dates of ca 1600-1580 Ma are reported from three samples taken from the southeastern margin of the Proterozoic Mt Isa Block. The samples include an upper amphibolite facies paragneiss and a pegmatite from the host sequence of the Cannington Ag-Pb-Zn deposit and a middle amphibolite facies metasediment from the Soldiers Cap Group near Maronan station. These dates are interpreted to represent the timing of amphibolite facies metamorphism at the southeastern margin of the Mt Isa Block. They are in accordance with the results of earlier SHRIMP U-Pb zircon and 40Ar/39Ar dating, which suggested that metamorphism in the southeastern Mt Isa Block occurred approximately 50 million years earlier than metamorphism in the western Mt Isa Block. This challenges the common perception of orogeny in the Mt Isa Block in which 'peak metamorphism', and the deformation events associated with it, can be correlated across the entire terrane.D. Giles and A. P. Nutma
Stratigraphic framework for the Leichhardt and Calvert Superbasins: review and correlations of the pre-1730 Ma successions between Mt Isa and McArthur River
No full textNew stratigraphic, geochemical and palaeomagnetic data from the Peters Creek Volcanics are used to revise the correlations of part of the Palaeoproterozoic of northern Australia. The revised geological history for these cover rocks of the Murphy Inlier is extrapolated into the 1800-1700 Ma successions of the McArthur Basin and Mt Isa regions. New stratigraphic subdivisions and relationships are contrasted with the established lithostratigraphic schemes and also with conflicting published tectono-stratigraphic interpretations. For the first time, a pletora of stratigraphic units can be rationalised into two major superbasins, the Leichhardt and Calvert Superbasins, and into eight pseudo-chronostratigraphic basin phases (Associations A-H). There are few absolute age constraints, but lateral correlations of the units in these eight basin phases are proposed. Results from the overlying Isa Superbasin (<1670 Ma) suggest that these eight associations probably represent second-order supersequences. Mixed non-marine and marine coarse clastics, deposited between about 1790 and 1780 Ma dominate Associations A and B. In the Mt Isa region these were deposited in an initial rift then a thermal relaxation or sag phase. To the northwest, however, the succession is dominated by rift facies. Association C is a widespread flood basalt and immature clastic suite that was deposited in clearly defined, north-trending half-grabens in the Mt Isa region. Along the southern edge of the Murphy Inlier, however, geophysically defined half-grabens, filled with magnetic rocks (basalt), trend orthogonal to those at Mt Isa. North of the inlier Association C is much thinner, and little can be deduced about its palaeogeography. Association D is only present in the Mt Isa region as the Myally Subgroup. Differing views on its tectonic setting and environments of deposition, as presented in recent papers, are reviewed. Association E, deposited around 1755 Ma, is a regional sag phase with mixed clastic-carbonate, shallow-marine lithofacies in all areas. There is a major gap in the rock record between about 1750 and 1735 Ma which is probably related to widespread basin inversion. The Mid-Tawallah Compressional Event (McArthur River area) and the Wonga Extension Event (Eastern Succession, Mt Isa) are both about this age. The overlying Association F is a thin, laterally uniform, upward-fining succession that commences with shallow-marine clastics and evolves through deeper marine clastics and ends in evaporitic facies. There are broad similarities between Associations F and E so interpretation as a third regional sag is favoured. The absence of Association F at Mt Isa may indicate that basin inversion was longer lived in the southeast. The youngest associations, G and H, are complex interstratified mixtures of felsic-mafic igneous rocks and immature clastics. U-Pb zircon SHRIMP ages appear to cluster around 1725 Ma and 1710 Ma, but they may all be part of one thermal event. These eight associations may represent the tectono-magmatic response of the lithosphere during and after the Strangways Orogeny (1780-1730 Ma)
Can evangelical Christians claim to be followers of Isa? : investigating the purpose, death and return of Isa and Jesus?
No full textMA (Missiology), North-West University, Potchefstroom Campus, 2016This research project deals with a simple question which drives the whole project. Can an Evangelical Christian claim to be a follower of Isa? The reason for asking this question is that there are two different groups of scholars who each answer the question differently. Both groups of scholars do not engage deeply with Islamic Christology to see what is the Isa of the Qur’an and hadith to be. There after a comparison is done with Jesus from the Gospels highlighting differences and similarities between the two figures. Thereafter, observing the missiolgical and anthropological aspects of claiming to follow Isa. The research is an exclusive literary study. The researcher attempts to argue that followers of Isa should be careful in adopting Isa as a self-identity and social religious identity. There are two dangers in that followers of Isa maybe perceived as Muslims by the Muslim community since most of the followers of Isa are converts from Islam. The second danger is that followers of Isa maybe syncretic in their approach and not contextual since they are merging two religionsMaster
Uncovering the Leichhardt Superbasin and Kalkadoon-Leichhardt Complex in the southern Mount Isa Terrane, Australia
No full textThe parts of the Mount Isa Terrane that crop out have been instrumental in deciphering the configuration of the supercontinent Nuna. In addition, these rocks host prolific base and precious metals. Further south, the Mount Isa Terrane is buried by >800 m of Phanerozoic cover that, to date, has primarily been investigated via geophysical surveys. Here, we present zircon U-Pb and Hf isotopic data of granitoids, metabasalts and metasedimentary rocks from seven >1 km deep drill holes that provide a window into the basement geology of the southern parts of the Mount Isa Terrane. The oldest rocks, intersected in two of the drill holes, are a series of granitic gneisses dated at ca. 1865 Ma, corresponding to the Kalkadoon-Leichhardt Complex. The majority of the encountered lithology in the drill holes are metasedimentary rocks with associated volcanic rocks and intruding granitoids, which bracket the remaining stratigraphy to ca. 1800–1760 Ma, corresponding to the lower and middle parts of the Leichhardt Superbasin. The ca. 1865 Ma Kalkadoon-Leichhardt Complex and ca. 1800 Ma granitoids have unradiogenic Hf isotopic signatures that necessitate an Archean lithosphere underneath the Mount Isa Terrane. Detrital zircon from the Leichhardt Superbasin may have been derived locally but also share age and Hf isotopic signatures with the eastern and northern Gawler Craton, implying possible long-distance transport. Metamorphic events recorded in discrete zircon grains and rims reveal punctuated tectonic activity at ca. 1760–1750 Ma and ca. 1720–1710 Ma in the southern Mount Isa Terrane, related to the pre-Wonga Event and the second stage of the Wonga Orogeny. The stratigraphy and events in the southern Mount Isa Terrane can be correlated to the northern and eastern Gawler Craton in South Australia, which may only have been ∼500–1000 km from the Mount Isa Terrane at the time of deposition. Ultimately, the results from these new drill holes reveal the extent of the Mount Isa Terrane under deep sedimentary cover and strengthen the links between the North and South Australian Cratons during the protracted assembly of the supercontinent Nuna
Predicting the effect of various ISA penetration grades on pedestrian safety by simulation
No full textIntelligent speed adaption (ISA) is one type of vehicle-based intelligent transportation systems (ITS), which warns and regulates driving speed according to the speed limits of the roads. Early field studies showed that ISA could reduce general mean speed levels and their variances in different road environments. This paper studies the effects of various ISA penetration grades on pedestrian safety in a single lane road. A microscopic traffic simulation tool, TPMA, was further developed and used to implement different ISA penetration grades. Momentary spot speed and traffic flow data are first logged in the traffic simulation for later prediction of pedestrian safety. Then a hypothetical vehicle-pedestrian collision model is extended from early researches in order to estimate two safety indicators: probability of collision, and risk of death. Finally, Monte Carlo method is applied iteratively to compute those safety indices. The computational result shows that raising ISA penetration in traffic flow will reduce both the probability of mid-block collision between vehicle and pedestrian and the risk of death in the collision accidents. Furthermore, the decrease of the risk of death will be more prominent than that of the collision probability according to this method.</p
PENGARUH MODEL PEMBELAJARAN GEOGHRAPHICAL INQUIRY TERHADAP KEMAMPUAN BERPIKIR ANALITIS SISWA PADA MATERI GEOGRAFI DI MA AL-KAUTSAR
No full textABSTRAK Muhammad Isa, (2025) : Pengaruh Model Pembelajaran Geoghraphical Inquiry terhadap Kemampuan Berpikir Analitis Siswa pada Materi Geografi di MA Al-Kautsar Penelitian ini bertujuan untuk menganalisis pengaruh penggunaan model pembelajran Geoghraphical Inquiry terhadap kemampuan berpikir analitis siswa pada materi hidrosfer di kelas X MA Al-Kautsar. Penelitian ini menggunakan pendekatan kuantitatif dengan metode quasi eksperimen desain non equivalent control grup design. Populasi dalam penelitian ini adalah seluruh siswa kelas X yang terdiri dari empat kelas. Penarikan sampel ditentukan dengan teknik purposive sampling dimana siswa kelas X-A untuk kelas eksperimen dengan perlakuan menggunakan model pembelajaran Geoghraphical Inquiry dan siswa kelas X-B untuk kelas kontrol dengan menggunakan model pembelajaran konvensional. Pengumpulan data dilakukan dengan pretest dan posttest berupa soal essay, lembar observasi, dan dilengkapi dengan dokumentasi. Analisis data penelitian menggunakan statistik parametrik dengan uji beda (uji t) dan uji N-Gain. Hasil penelitian menunjukkan bahwa penggunaan model pembelajaran Geoghraphical Inquiry pada kelas eksperimen memberikan pengaruh yang signifikan terhadap kemampuan berpikir analitis siswa pada materi hidrosfer. Hal ini dibuktikan dengan uji independent sample test kelas eksperimen dan kontrol, tidak ada perbedaan saat pretest (t-hitung ≤ t-tabel /0,432 ≤ 2,0117), dan ada perbedaan signifikan pada posttest (t-hitung ≥ t-tabel /4,929 ≥ 2,0117). Berdasarkan uji paired sample test, baik di kelas eksperimen maupun di kelas kontrol terdapat perbedaan nilai antara pretest dan postest (t-hitung ≤ t-tabel 19,762 ≤ 2,0117 pada kelas eksperimen dan 7,359 ≤ 2,0117 pada kelas kontrol) yang menunjukkan bahwa kedua perlakuaan berpengaruh signifikan terhadap kemampuan berpikir analitis. Namun, pengaruh yang lebih besar ditunjukkan pada kelas eksperimen dengan rata rata N-Gain skor 69,34 (kategori sedang), dibandingkan rata-rata N-Gain skor kelas kontrol sebesar 17,04 (kategori rendah). Kata Kunci: Geoghraphicai Inquiry, Kemampuan Berpikir analitis, Hidrosfe
Linking the Gawler Craton and Mount Isa Province through hydrothermal systems in the Peake and Denison Domain, northeastern Gawler Craton
No full textData source: Supplementary data, https://doi.org/10.1016/j.gsf.2023.101596Tectonic reconstructions of Proterozoic Australia commonly place the Peake and Denison Domain of the northeastern Gawler Craton at the interface between the North and South Australian cratons prior to the reconfiguration of Australia’s main tectonic components in the Mesoproterozoic. However, this reconstruction is largely based on palaeomagnetic data as the geological correlations between these regions are currently limited, particularly during the Mesoproterozoic. The early Mesoproterozoic period is significant as it corresponds to major IOCG mineralization in the eastern Gawler Craton between 1600 Ma and 1575 Ma, and IOCG mineralization in the Mount Isa Province largely between 1550 Ma and 1490 Ma. Therefore, determining the relationship of the Peake and Denison Domain to the Gawler Craton and Mount Isa Province during this period is essential to evaluating mineral prospectivity in the northeastern Gawler Craton. New U–Pb LA-ICP-MS geochronology on zircon and titanite improves our understanding of the tectonothermal and hydrothermal history the Peake and Denison Domain during the latePalaeoproterozoic, early-Mesoproterozoic and the Cambrian–Ordovician periods. Titanite formed within largely calc-silicate alteration assemblages indicates the Peake and Denison Domain has a protracted history of hydrothermal activity, recording events at c. 1565 Ma, 1530–1515 Ma, c. 1500 Ma, c. 1465 Ma and c. 490 Ma. The highly calcic nature of the c. 1565–1500 Ma alteration in the Peake and Denison Domain shares strong similarities in age and character to the regional calcic-sodic alteration recorded in the Mount Isa Province. We suggest the two regions were influenced by similar hydrothermal systems during the early Mesoproterozoic, supporting reconstruction models that place the Peake and Denison Domain near the Mount Isa Province during the early-Mesoproterozoic. This highlights the prospectivity of the Peake and Denison Domain for Isan-style IOCG mineralization, but requires consideration of the post-1500 Ma rotation of prospective structures.Mitchell J. Bockmann, Justin L. Payne, Martin Hand, Laura J. Morrissey, Antonio P. Belperi
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