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Journal articles on the topic 'Cobar'

Author: Grafiati

Published: 4 June 2021

Last updated: 20 February 2023

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1

Felix, Yves, Stephen Halperin, and Jean-Claude Thomas. "Adams' Cobar Equivalence." Transactions of the American Mathematical Society 329, no. 2 (February 1992): 531. http://dx.doi.org/10.2307/2153950.

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2

Félix, Yves, Stephen Halperin, and Jean-Claude Thomas. "Adams’ cobar equivalence." Transactions of the American Mathematical Society 329, no. 2 (February 1, 1992): 531–49. http://dx.doi.org/10.1090/s0002-9947-1992-1036001-2.

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3

David, Vladimir. "Cobar Deposits - Structural control." ASEG Extended Abstracts 2018, no. 1 (December 2018): 1–9. http://dx.doi.org/10.1071/aseg2018abt6_2g.

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4

Smith, Justin R. "Iterating the cobar construction." Memoirs of the American Mathematical Society 109, no. 524 (1994): 0. http://dx.doi.org/10.1090/memo/0524.

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5

Rivera, Manuel. "Adams' cobar construction revisited." Documenta Mathematica 27 (2022): 1213–23. http://dx.doi.org/10.4171/dm/895.

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6

STEGMAN, CRAIG L. "Cobar Deposits: Still Defying Classification!" SEG Discovery, no. 44 (January 1, 2001): 1–26. http://dx.doi.org/10.5382/segnews.2001-44.fea.

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7

BAUES, HANS-JOACHIM, and ANDREW TONKS. "On the twisted cobar construction." Mathematical Proceedings of the Cambridge Philosophical Society 121, no. 2 (March 1997): 229–45. http://dx.doi.org/10.1017/s0305004196001363.

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8

Meyer, Jean-Pierre. "Bar and cobar constructions II." Journal of Pure and Applied Algebra 43, no. 2 (December 1986): 179–210. http://dx.doi.org/10.1016/0022-4049(86)90094-0.

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9

Dancète, Dominique. "Sur l'itération de la construction Cobar." Comptes Rendus de l'Académie des Sciences - Series I - Mathematics 328, no. 8 (April 1999): 691–94. http://dx.doi.org/10.1016/s0764-4442(99)80236-5.

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10

Hess, Kathryn, and Andrew Tonks. "The loop group and the cobar construction." Proceedings of the American Mathematical Society 138, no. 05 (December 21, 2009): 1861–76. http://dx.doi.org/10.1090/s0002-9939-09-10238-1.

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11

Baues, Hans-Joachim. "The cobar construction as a Hopf algebra." Inventiones Mathematicae 132, no. 3 (May 8, 1998): 467–89. http://dx.doi.org/10.1007/s002220050231.

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12

Kadeishvili, T. "On the cobar construction of a bialgebra." Homology, Homotopy and Applications 7, no. 2 (2005): 109–22. http://dx.doi.org/10.4310/hha.2005.v7.n2.a6.

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13

Tonkin, C., D. A. Clark, and D. W. Emerson. "The Magnetisation of the Elura Orebody, Cobar, NSW." Exploration Geophysics 19, no. 1-2 (March 1988): 368–70. http://dx.doi.org/10.1071/eg988368.

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14

Parrish, M. D., W. J. Collins, R. A. Hegarty, P. J. Gilmore, and H. Q. Huang. "Depositional age and provenance of the Cobar Supergroup." Australian Journal of Earth Sciences 65, no. 7-8 (October 9, 2018): 1035–48. http://dx.doi.org/10.1080/08120099.2018.1501422.

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15

Cathelineau, Jean-Louis. "Scissors congruences and the bar and cobar constructions." Journal of Pure and Applied Algebra 181, no. 2-3 (June 2003): 141–79. http://dx.doi.org/10.1016/s0022-4049(02)00333-x.

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16

Orgill, S. E., C. M. Waters, G. Melville, I. Toole, Y. Alemseged, and W. Smith. "Sensitivity of soil organic carbon to grazing management in the semi-arid rangelands of south-eastern Australia." Rangeland Journal 39, no. 2 (2017): 153. http://dx.doi.org/10.1071/rj16020.

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This study compared the effects of grazing management on soil organic carbon (OC) stocks in the semi-arid rangelands of New South Wales, Australia. A field survey was conducted at three locations (Brewarrina, Cobar–North and Cobar–South), with paired sites of long-term (>8 years) rotational grazing management and continuously grazed pastures (either set stocked or no stocking). At each location, soil OC, carbon (C) fractions, soil nitrogen (N) and microsite and site factors (including ground cover and woody vegetation) were measured. The control of total grazing pressure (TGP) through rotational grazing and exclusion fencing did not increase soil C stocks compared with continuous grazing for the majority of comparisons. However, in some parts of the landscape, higher soil C stock was found with TGP control, for example on the ridges (21.6 vs 13.3 t C ha–1 to 0.3 m). C stocks increased with litter and perennial ground cover and with close proximity to trees. At Brewarrina, C stocks were positively affected by perennial plant cover (P < 0.001) and litter (P < 0.05), whereas at Cobar–North and Cobar–South C stocks were positively affected by the presence of trees (P < 0.001), with higher C stocks in close proximity to trees, and with increasing litter cover (P < 0.01). The present study demonstrates that natural resource benefits, such as increased perennial cover, can be achieved through controlling TGP in the rangelands but increases in soil C may be limited in certain parts of the landscape. These findings also highlight that interactions between managed and unmanaged TGP and microsite factors, such as ground cover and proximity to woody vegetation, need to be considered when evaluating the role of changed grazing management on soil C.

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17

Ching, Michael. "Bar-cobar duality for operads in stable homotopy theory." Journal of Topology 5, no. 1 (January 12, 2012): 39–80. http://dx.doi.org/10.1112/jtopol/jtr027.

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18

Quesney, Alexandre. "Homotopy BV-algebra structure on the double cobar construction." Journal of Pure and Applied Algebra 220, no. 5 (May 2016): 1963–89. http://dx.doi.org/10.1016/j.jpaa.2015.10.010.

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19

Rivera, Manuel, and Mahmoud Zeinalian. "Cubical rigidification, the cobar construction and the based loop space." Algebraic & Geometric Topology 18, no. 7 (December 11, 2018): 3789–820. http://dx.doi.org/10.2140/agt.2018.18.3789.

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20

Fitzherbert, J. A., P. L. Blevin, and A. R. McKinnon. "Metamorphism and Skarn Mineralisation in the Cobar Basin: Implications for Exploration." ASEG Extended Abstracts 2018, no. 1 (December 2018): 1–8. http://dx.doi.org/10.1071/aseg2018abt6_1g.

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21

Shnider, S., and S. Sternberg. "The Cobar Resolution and a Restricted Deformation Theory for Drinfeld Algebras." Journal of Algebra 169, no. 2 (October 1994): 343–66. http://dx.doi.org/10.1006/jabr.1994.1289.

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22

Perkins, C., M. C. Hinman, and J. L. Walshe. "Timing of mineralization and deformation, Peak Au mine, Cobar, New South Wales∗." Australian Journal of Earth Sciences 41, no. 5 (October 1994): 509–22. http://dx.doi.org/10.1080/08120099408728161.

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23

Alipour, S., D. R. Cohen, and A. C. Dunlop. "Characteristics of magnetic and non-magnetic lag in the Cobar area, NSW." Journal of Geochemical Exploration 58, no. 1 (February 1997): 15–28. http://dx.doi.org/10.1016/s0375-6742(96)00026-x.

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24

Greene, R. S. B., W. D. Nettleton, C. J. Chartres, J. F. Leys, and R. B. Cunningham. "Runoff and micromorphological properties of a grazed haplargid, near Cobar, NSW, Australia." Soil Research 36, no. 1 (1998): 87. http://dx.doi.org/10.1071/s97024.

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We investigated the effects of 2 different grazing regimes on the surface soil properties of a dunefield land system in the semi-arid woodlands of eastern Australia. Sandy siliceous, thermic Xeric Haplargids (Siliceous Sands, Uc1·23) occur on the sandy, 2–4-m-high longitudinal dunes. Fine-loamy, siliceous, thermic Xeric Haplargids (Massive Red Earths, Uc2·13) occur in the swales between the dunes. We compared very high-intensity grazing (approx. 1 year) by feral goats with low-intensity grazing (approx. 4 years) by sheep. A rainfall simulator, applying water at the rate of 30 mm/h, measured the hydraulic properties of the surface soils formed under the 2 different grazing regimes. We examined undisturbed samples of the upper 5-cm layer of the soil surface using micromorphological techniques. In the swales, there were no differences in the effects of the 2 grazing regimes on soil properties. At low-intensity sheep grazing (0·2–0·3 sheep/ha), the soil surface on the dunes remained in an excellent condition. The surface had a good vegetative cover and consisted of either loosely packed sand grains, or areas where the sand grains were bonded together by clay and organic matter to form an organic crust. The total carbon content of the 0–2 cm depth of soil was 0·86%. Both soil surfaces have a high infiltration rate (i.e. >30 mm/h) and also appear to contain stable microaggregates of parna material distributed among the eolian sand grains. Very high-intensity goat grazing (up to 4·0 goats/ha) rapidly depleted the perennial grasses, killed most of the shrubs, and converted the soil surface on the dunes to one highly susceptible to erosion by wind. The low total carbon content (depth 0–2 cm) of 0·3% and absence of iron-stained clay coatings on the sands further support this view. The surface soil on the dunes in the very high-intensity goat-grazing plots consisted of either loosely packed sand grains or areas where poorly orientated clays coated the sand grains to form a strong, physical crust. We suggest that the physical crust may cause a change in the hydrology of the land system which may enhance the conditions for recruitment of unpalatable shrubs in the dune–swale interface. This increase in unpalatable shrubs and decrease in perennial grasses caused by the very high intensity goat grazing is therefore detrimental to the long-term productivity of these semi-arid lands.

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25

Clark, D. A., and C. Tonkin. "Magnetic anomalies due to pyrrhotite: examples from the Cobar area, N.S.W., Australia." Journal of Applied Geophysics 32, no. 1 (April 1994): 11–32. http://dx.doi.org/10.1016/0926-9851(94)90006-x.

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26

Glen, R. A., R. D. Dallmeyer, and L. P. Black. "Isotopic dating of basin inversion—The Palaeozoic Cobar Basin, Lachlan Orogen, Australia." Tectonophysics 214, no. 1-4 (November 1992): 249–68. http://dx.doi.org/10.1016/0040-1951(92)90200-p.

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27

Ducoulombier, Julien, Najib Idrissi, and Ricardo Campos. "Boardman–Vogt resolutions and bar/cobar constructions of (co)operadic (co)bimodules." Higher Structures 5, no. 1 (December 16, 2021): 310–83. http://dx.doi.org/10.21136/hs.2021.09.

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28

Chuang, Joe, Julian Holstein, and Andrey Lazarev. "Homotopy theory of monoids and derived localization." Journal of Homotopy and Related Structures 16, no. 2 (March 3, 2021): 175–89. http://dx.doi.org/10.1007/s40062-021-00276-6.

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AbstractWe use derived localization of the bar and nerve constructions to provide simple proofs of a number of results in algebraic topology, both known and new. This includes a recent generalization of Adams’s cobar-construction to the non-simply connected case, and a new algebraic model for the homotopy theory of connected topological spaces as an $$\infty $$ ∞ -category of discrete monoids.

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29

Glen, R. A., B. J. Drummond, B. R. Goleby, D. Palmer, and K. D. Wake‐Dyster. "Structure of the Cobar Basin, New South Wales, based on seismic reflection profiling." Australian Journal of Earth Sciences 41, no. 4 (August 1994): 341–52. http://dx.doi.org/10.1080/08120099408728143.

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30

Kyne, Roisin, Ron Berry, and Bruce Gemmell. "Genesis and structural architecture of the CSA Cu-Ag Mine, Cobar, NSW, Australia." Applied Earth Science 125, no. 2 (April 2, 2016): 89–90. http://dx.doi.org/10.1080/03717453.2016.1166647.

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31

Arzani, H., and GW King. "Comparison of Wheel Point and Point Frame Methods for Plant Cover Measurement of Semiarid and Arid Rangeland Vegetation of New South Wales." Rangeland Journal 16, no. 1 (1994): 94. http://dx.doi.org/10.1071/rj9940094.

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Ground cover is frequently estimated in rangeland monitoring and it is an important intermediate measurement between biomass estimation and satellite imagery. As a preliminary phase in a longer term program, wheel point and point frame methods were used to measure vegetation cover on four permanent Soil Conservation Service transects at each of four land systems in western New South Wales, at Nyngan (410 mm average annual rainfall), at Cobar (364 mm average annual rainfall) and two at Fowlers Gap (200 mm average annual rainfall) north of Broken Hill. The majority of this work used 400 wheel point hits per transect and 100 point quadrats sub sampled 9 - 13 times along each of four transects. There was no statistically significant difference between these techniques for total foliage cover over a combined analysis of all sites under pre-drought conditions, and for pre-drought and post-drought at Cobar. However, there was a 10% difference estimated between the techniques for total foliage cover at Nyngan when it was analysed in isolation. There were no consistent differences in technique for cover estimation for more than 40 plant species including annual grasses and herbs, perennial grasses and saltbushes. Significant differences between techniques were found for Medicago sp. and Thyridolepis mitchelliana on one occasion. We believe that these differences were due to the problems of finding small plants in tall grass and identifying heavily grazed grasses during drought conditions at Cobar and, in the latter case, this was also associated with a significantly greater estimate of mean cover for all grasses and thus total foliage cover. Although there was generally no statistical difference between techniques our observations suggest that the point frame tends to give lower estimates of cover than the wheel point in the situations measured. This may be associated with the circumference of the marker pins on the wheel point or perhaps observer error but as this effect appeared to be more noticeable with grasses we suspect that the former is most likely. The wheel point is less time consuming, more convenient and simpler to use than the point frame, and will readily accommodate most temporal and spatial variation in sampling requirements in similar land forms in western New South Wales.

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32

Ebach, Malte C., and Gregory D. Edgecombe. "The Devonian trilobite Cordania from Australia." Journal of Paleontology 73, no. 3 (May 1999): 431–36. http://dx.doi.org/10.1017/s0022336000027955.

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The genus Cordania Clarke, 1892, has been known from the Lower Devonian (Lochkovian-Pragian) of the Appalachian Province and apparently from the Lower-Middle Devonian of China. Probable Lochkovian strata of the Biddabirra Formation in the Amphitheatre Group from near Cobar, New South Wales, Australia, have yielded Cordania buicki new species, extending the range of the genus to eastern Australia. Cladistic analysis of Cordania identifies C. buicki as more closely related to species from Oklahoma than to a northern Appalachian grade.

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33

Chopping, R., and S. van der Wielen. "Querying potential field inversions for signatures of chemical alteration: an example from Cobar, NSW." ASEG Extended Abstracts 2009, no. 1 (2009): 1. http://dx.doi.org/10.1071/aseg2009ab107.

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34

Giles, Alan D., and Brian Marshall. "Genetic significance of fluid inclusions in the CSA Cu–Pb–Zn deposit, Cobar, Australia." Ore Geology Reviews 24, no. 3-4 (March 2004): 241–66. http://dx.doi.org/10.1016/j.oregeorev.2003.05.003.

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35

Brill, B. A. "Deformation and recrystallization microstructures in deformed ores from the CSA mine, Cobar, N.S.W., Australia." Journal of Structural Geology 11, no. 5 (January 1989): 591–601. http://dx.doi.org/10.1016/0191-8141(89)90090-4.

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36

Mücher, H. J., C. J. Chartres, D. J. Tongway, and R. S. B. Greene. "Micromorphology and significance of the surface crusts of soils in rangelands near Cobar, Australia." Geoderma 42, no. 3-4 (August 1988): 227–44. http://dx.doi.org/10.1016/0016-7061(88)90003-1.

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37

Scott, Keith M., and Angela N. Lorrigan. "Exploration for Zn-rich mineralization in the semi-arid Cobar region of NSW, Australia." Geochemistry: Exploration, Environment, Analysis 11, no. 2 (May 2011): 93–101. http://dx.doi.org/10.1144/1467-7873/09-iags-008.

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38

Smith, M. L., B. J. Pillans, and K. G. McQueen. "Paleomagnetic evidence for periods of intense oxidative weathering, McKinnons mine, Cobar, New South Wales." Australian Journal of Earth Sciences 56, no. 2 (March 2009): 201–12. http://dx.doi.org/10.1080/08120090802547033.

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39

Tighe, M., N. Reid, B. R. Wilson, and M. T. McHenry. "High soil acidity under native shrub encroachment in the Cobar Pediplain, south-eastern Australia." Rangeland Journal 40, no. 5 (2018): 451. http://dx.doi.org/10.1071/rj17124.

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This study investigated the chemical characteristics of shallow (0–30 cm) soil profiles under shrubs in areas of dense encroachment and compared them with shallow soil profiles under nearby large trees. Consistent patterns of high soil acidity were found under shrubs, as well as lower litter alkalinity, lower relative concentrations of calcium (Ca2+), lower effective cation exchange capacity, and higher aluminium (Al3+) and sodium (Na+) in the soil profile compared with under trees. Soil pH (CaCl2) was strongly correlated with the Ca content of surface litter. These findings suggest that shrubs (which at most sites included the shrub form of tree species) cycle alkalinity differently from large and mature trees, resulting in high acidity in the shallow soil profile acidity, and possible loss of alkalinity via surface movement of material from areas of dense encroachment.

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40

Lay, Angela, Ian Graham, Lachlan Burrows, Adam McKinnon, and Karen Privat. "Ore and Gangue Minerals of the Hera Au-Pb-Zn-Ag Deposit, Cobar Basin, NSW." ASEG Extended Abstracts 2018, no. 1 (December 2018): 1–7. http://dx.doi.org/10.1071/aseg2018abm1_3d.

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41

Binns, R. A., and E. C. Appleyard. "Wallrock alteration at the western system of the CSA mine, cobar, New South Wales, Australia." Applied Geochemistry 1, no. 2 (March 1986): 211–25. http://dx.doi.org/10.1016/0883-2927(86)90005-3.

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42

Hegarty, Rosemary, Astrid Carlton, and Karol Czarnota. "Yathong Trough deep 2D reflection seismic survey - identifying major structures for the southern Cobar Basin, NSW." ASEG Extended Abstracts 2016, no. 1 (December 2016): 1–4. http://dx.doi.org/10.1071/aseg2016ab279.

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43

Sheard, S. N., J. R. Bishop, and R. V. Kissitch. "A practical approach to the filtering of airborne magnetic data in the Cobar region of NSW." Exploration Geophysics 22, no. 2 (June 1991): 353–56. http://dx.doi.org/10.1071/eg991353.

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44

Cohen, D. R., X. C. Shen, A. C. Dunlop, and N. F. Rutherford. "A comparison of selective extraction soil geochemistry and biogeochemistry in the Cobar area, New South Wales." Journal of Geochemical Exploration 61, no. 1-3 (May 1998): 173–89. http://dx.doi.org/10.1016/s0375-6742(97)00052-6.

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45

Smith, J. V. "Experimental kinematic analysis of en echelon structures in relation to the Cobar Basin, Lachlan Fold Belt." Tectonophysics 214, no. 1-4 (November 1992): 269–76. http://dx.doi.org/10.1016/0040-1951(92)90201-g.

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46

Glen, R. A. "Copper- and gold-rich deposits in deformed turbidites at Cobar, Australia; their structural control and hydrothermal origin." Economic Geology 82, no. 1 (February 1, 1987): 124–40. http://dx.doi.org/10.2113/gsecongeo.82.1.124.

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47

Seccombe, P. K., Z. Jiang, and P. M. Downes. "Sulfur isotope and fluid inclusion geochemistry of metamorphic Cu–Au vein deposits, central Cobar area, NSW, Australia." Australian Journal of Earth Sciences 64, no. 4 (March 21, 2017): 537–56. http://dx.doi.org/10.1080/08120099.2017.1297330.

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48

Robertson, I. D. M., and G. F. Taylor. "Depletion haloes in fresh rocks surrounding the Cobar orebodies, N.S.W., Australia: Implications for exploration and ore genesis." Journal of Geochemical Exploration 27, no. 1-2 (October 1987): 77–101. http://dx.doi.org/10.1016/0375-6742(87)90006-9.

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49

McQueen, K. G., O. R. Gonzalez, I. C. Roach, B. J. Pillans, W. J. Dunlap, and M. L. Smith. "Landscape and regolith features related to Miocene leucitite lava flows, El Capitan northeast of Cobar, New South Wales." Australian Journal of Earth Sciences 54, no. 1 (February 2007): 1–17. http://dx.doi.org/10.1080/08120090600923311.

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50

Smith, J. V., and B. Marshall. "Patterns of folding and fold interference in oblique contraction of layered rocks of the inverted Cobar Basin, Australia." Tectonophysics 215, no. 3-4 (December 1992): 319–34. http://dx.doi.org/10.1016/0040-1951(92)90359-e.

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