The Surface Hydrology Points (Regional) dataset provides a set of related features classes to be used as the basis of the production of consistent hydrological information. This dataset contains a geometric representation of major hydrographic point elements - both natural and artificial. This dataset is the best available data supplied by Jurisdictions and aggregated by Geoscience Australia it is intended for defining hydrological features.

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Close up map of Submarine Cables and southern protection zone around Clovelly / Tamarama, Sydney. For internal use by ACMA. Included in this version (July 2010) is the Telstra Endeavour Cable. This map developed from previous map GeoCat 65415 (September 2007). Upated in July 2010 with the Telstra Endeavour Cable. For internal use of ACMA. Not for sale or public distribution.

40% coverage central north 22-2/D53-5/2-5 Contour interval: 200

This document defines the Computer Compatible Tape (CCT) format for raw, quicklook, bulk-corrected (georeferenced) system-corrected and precision processed Landsat Thematic Mapper (TM) imagery data acquired from the Landsat 4, Landsat 5 and subsequent satellites.

In addition to typical VHMS deposits, the ~3240 Ma Panorama district contains contemporaneous greisen- and vein-hosted Mo-Cu-Zn-Sn mineral occurrences that are hosted by the Strelley granite complex, which drove VHMS circulation, making this district a natural laboratory to assess the role of magmatic-hydrothermal fluids in VHMS hydrothermal systems. High-temperature alteration zones in volcanic rocks below the VHMS deposits are dominated by quartz-chlorite±albite assemblages, with lesser quartz-sericite±K-feldspar assemblages, typical of VHMS systems. In contrast, the assemblages associated with granite-hosted greisens and veins, which do not extend into the overlying volcanic pile, include quartz-topaz-muscovite-fluorite and quartz-muscovite(sericite)-chlorite-ankerite. Fluid inclusion and stable isotope data suggest that the greisens formed from high temperature (~590°C), high salinity (38-56 wt % NaCl equiv) fluids with high densities (>1.3 g/cm3) and high -18O (9.3±0.6-). These fluids are compatible with the characteristics of magmatic fluids evolved from the Strelley granite complex. Fluids in the volcanic pile (including the VHMS ore-forming fluids) were of lower temperature (90-270°C), lower salinity (5.0-11.2 wt % NaCl equiv), with lower densities (0.88-1.01 g/cm3) and lower -18O (-0.8±2.6-), compatible with evolved Paleoarchean seawater. Fluids that formed quartz-chalcopyrite-sphalerite-cassiterite veins, which are present within the granite complex near the contact with the volcanic pile, had intermediate in temperature and isotopic compositions (T = 240-315°C; -18O = 4.3±1.5-) and likely indicate mixing between the two end-member fluids. Evidence of mixing between evolved seawater and magmatic-hydrothermal fluid within the granite complex, together with the lack of evidence for a magmatic component in fluids from the volcanic pile, suggest partitioning of magmatic-hydrothermal from evolved seawater hydrothermal systems in the Panorama system.

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