The timing and duration of the Delamerian orogeny: Correlation with the Ross Orogen and implications for Gondwana assembly

Copyright © 2006 by the University of Chicago PressThe Antarctic Ross and the Australian Delamerian orogenies are the consequence of stress transfer to the outboard trailing edge of the newly assembled Gondwana supercontinent. This tectonic reorganization occurred in the Early to Middle Cambrian on completion of Pan-African deformation and subduction along the sutures between eastern and western Gondwanan continental fragments. Before this, Neoproterozoic to Early Cambrian rocks in eastern Australia were formed in a passive margin and record dispersion of Rodinia with consequent opening of the proto-Pacific. Our new U-Pb and Rb-Sr geochronology shows that in the South Australian (Adelaide Fold Belt) domain of the Delamerian Orogen, contractional orogenesis commenced at 514 ± 3 Ma and persisted for ∼24 m.yr. until 490 ± 3 Ma, terminated by rapid uplift, cooling, and extension in association with posttectonic magmatism. Integration of new and published U-Pb and 40Ar-39Ar geochronology from the entire Ross-Delamerian belt shows that although both the Delamerian and Ross have a synchronous late magmatic and terminal cooling history, the Ross commenced its convergent orogenic history at ∼540 Ma. This was 25 m.yr. before Delamerian deformation began. During the Early Cambrian, eastern Australia was still in a state of extension (or transtension), with opening of the Kanmantoo Basin and associated anorogenic, largely mafic magmatism. This basin received sediment from the already exposed Ross Orogen to the south. The simultaneous first occurrence of strain fabrics and subduction-related magmatism (including boninite, granite, and andesite lavas) at ∼514 Ma in New Zealand, Victoria, South Australia, New South Wales, and Tasmania implies that the Delamerian Orogeny was driven by ridge-push forces transmitted on the initiation of westward-dipping subduction. Subsequent eastward slab rollback at 490 Ma may have occurred when the new slab had reached the transition zone at 650-km depth, resulting in upper plate extension and anorogenic Basin and Range–style magmatism in South Australia and Tasmania (Mount Read belt). The delayed onset of subduction in the Australian sector of the margin implies that westward motion of the Australian portion of eastern Gondwana continued to be accommodated during the late Early Cambrian by subduction or deformation along either the Mozambique Suture or at the northern end of the South Prince Charles Mountains–Prydz Bay suture.John Foden, Marlina A. Elburg, Jon Dougherty-Page, and Andrew Burt

`Composite particles' and the eigenstates of Calogero-Sutherland and Ruijsenaars-Schneider

We establish a one-to-one correspondance between the ''composite particles'' with $N$ particles and the Young tableaux with at most $N$ rows. We apply this correspondance to the models of Calogero-Sutherland and Ruijsenaars-Schneider and we obtain a momentum space representation of the ''composite particles'' in terms of creation operators attached to the Young tableaux. Using the technique of bosonisation, we obtain a position space representation of the ''composite particles'' in terms of products of vertex operators. In the special case where the ''composite particles'' are bosons and if we add one extra quasiparticle or quasihole, we construct the ground state wave functions corresponding to the Jain series $\nu =p/(2np\pm 1)$ of the fractional quantum Hall effect.Comment: latex calcomp2.tex, 5 files, 30 pages [SPhT-T99/080], submitted to J. Math. Phy

Организационная модель аудита доходов санаторно-курортных предприятий

Целью статьи является определение сущности с учетом взглядов ученых и обоснование особенностей организационной модели аудита доходов санаторно-курортных организаций.Метою статті є визначення суті з урахуванням поглядів учених і обґрунтування особливостей організаційної моделі аудиту доходів санаторно-курортних організацій

Газоносність вугільних пластів та фізико-механічнині властивості порід покрівлі і підошви поля шахти № 1 ”Тяглівська” Львівсько-Волинського басейну

Сопоставлены данные по изучению газоносности угольных пластов поля шахты № 1 ―Тягловская‖ и физико-механическим свойствам пород их непосредственной кровли и подошвы. Благоприятными яляются условия для выработки пластов b4, n8 в, n8. Несколько сложнее – для пластов n9, n7 в, n7 1, что вызвано низкой стойкостью пород кровли. Наиболее сложной прогнозируется ситуация для эксплуатации пласта n7 из-за низной стойкости и способности его кровли к обрушениям. Угольные пласты (кроме b4) находятся в метановой зоне. Их газоносность значительна, содержание метана в газовой смеси высокое. Это будет составлять дополнительные трудности при эксплуатации.Data on studies of the gas-bearing potential of coal seams of the Tyagliv-1 mine field are correlated as well as physical-mechanical properties of their immediate base and roof. Favorable conditions are known to exist for working of the seams b4, n8 в, n8. Somewhat more composite ones are observed for the seams n9, n7в, n7 1 that was caused by low stability of the roof rocks. The most composite situation is forecasted for exploitation of the seam n7 one to low stability and ability of its roof for landslides. Coal seams (exsepting b4) lie in the methane zone. Their gas-bearing potential is suffcient, methane content in a gas mixture is high. That will cause additional difficalties in the process of exploitation

Військовополонені Першої світової війни в Кременчуцькому гарнізоні

У статті досліджено правове становище та умови перебування військовополонених Першої світової війни на території Кременчуцького гарнізону в другій половині 1916 року. На основі архівних даних визначено кількісний склад полонених, його розподіл за національною, соціальною та конфесійною ознаками. Досліджено динаміку чисельності, побутові умови та використання праці військовополонених.В статье исследовано правовое положение и условия пребывания военнопленных Первой мировой войны на территории Кременчугского гарнизона во второй половине 1916 года. На основе архивных данных определен количественный состав пленных, его распределение по национальной, социальной и конфессиональной принадлежности. Исследована динамика численности, бытовые условия и использования труда военнопленных.In article the legal status and conditions of stay of prisoners of war of the First World War in territory of the Kremenchug garrison in second half of 1916 is investigated. On the basis of contemporary records the quantitative structure captured, its distribution on a national, social and confessional accessory is defi ned. Dynamics of number, conditions of life and uses of work of prisoners of war is investigated

Проблемы специализированной помощи обожженным в России и пути их решения

На основании изучения динамики ожогового травматизма в России, тяжести травм и летальности среди больных с ожогами отмечено увеличение тяжести термической травмы, частоты раннего ожогового сепсиса и летальности среди взрослого населения, определены организационные и научные пути решения проблемы, повышения эффективности работы ожоговых центров.Basing on the study of the dynamics of burns in Russia, severity of the injury and death rate in the patients with burns the authors emphasize the increase in severity of thermal injury, incidence of early burn sepsis and death rate in adults. Organizational and scientific ways to solve the problem as well as to increase the efficacy of work of burn centers are defined

Finite-temperature form factors in the free Majorana theory

We study the large distance expansion of correlation functions in the free massive Majorana theory at finite temperature, alias the Ising field theory at zero magnetic field on a cylinder. We develop a method that mimics the spectral decomposition, or form factor expansion, of zero-temperature correlation functions, introducing the concept of "finite-temperature form factors". Our techniques are different from those of previous attempts in this subject. We show that an appropriate analytical continuation of finite-temperature form factors gives form factors in the quantization scheme on the circle. We show that finite-temperature form factor expansions are able to reproduce expansions in form factors on the circle. We calculate finite-temperature form factors of non-interacting fields (fields that are local with respect to the fundamental fermion field). We observe that they are given by a mixing of their zero-temperature form factors and of those of other fields of lower scaling dimension. We then calculate finite-temperature form factors of order and disorder fields. For this purpose, we derive the Riemann-Hilbert problem that completely specifies the set of finite-temperature form factors of general twist fields (order and disorder fields and their descendants). This Riemann-Hilbert problem is different from the zero-temperature one, and so are its solutions. Our results agree with the known form factors on the circle of order and disorder fields.Comment: 40 pp.; v2: 42 pp., refs and acknowledgment added, typos corrected, description of general matrix elements corrected and extended; v3: 47 pp., appendix adde

K-matrices for non-abelian quantum Hall states

Two fundamental aspects of so-called non-abelian quantum Hall states (the q-pfaffian states and more general) are a (generalized) pairing of the participating electrons and the non-abelian statistics of the quasi-hole excitations. In this paper, we show that these two aspects are linked by a duality relation, which can be made manifest by considering the K-matrices that describe the exclusion statistics of the fundamental excitations in these systems.Comment: LaTeX, 12 page

Letter from the Citizens of Ommen to the Governor of Overijssel

Sixteen citizens of Ommen sent a communication to the Governor of the Province that they saw no need for him to send a military detachment to Ommen now that the disturbances had ended. Besides, a relatively few people were the troublemakers. The billeting of military people will be a great burden to the citizens of Ommen.https://digitalcommons.hope.edu/vrp_1830s/1048/thumbnail.jp