Trace elements and Sr isotopic composition of waters from the Great Artesian Basin of Australia: Implications for the formation of ore deposits and hydrocarbon resources

摘要: The Great Artesian Basin of eastern Australia (hereafter GAB), one the largest artesian basins in world, extends from Queensland to northern New South Wales, and into Northern Territory Australia, covering an area approximately 1.7 × 108 km2 (Habermehl, 1980). geometry GAB, which has a NE—SW axis plunging SW, probably reflects Tertiary uplift margin together with subsidence its central southwestern parts. major recharge is along flank: water flows southwesterly direction, discharged south southwest (Figure 1). GAB itself can be subdivided multilayered aquifer system, Lower Cretaceous—Jurassic J-aquifer) most important, composed Triassic Cretaceous epicontinental sandstones confined by Mesozoic clay-rich sediments shallow marine or continental origin.