Sunda Trench an underwater ridge, and much of the trench is at least partially filled with sediments. Mappings after the 2004 Indian Ocean earthquake of the plate boundary showed resemblance to suspension bridge cables, with peaks and sags, indicative of asperity and locked faults, instead of the traditional wedge shape expected. Some of the earliest exploration of the Trench occurred in the late 1950s when Robert Fisher, Research Geologist at the Scripps Institution of Oceanography, investigated the trench as part of a worldwide scientific field exploration of the world's ocean floor and sub-oceanic crustal-structure. Bomb-sounding, echo-train analysis and manometer were some of
Diamantina Bowen supervised the layout of the gardens of the house, which included lawns, tennis courts as well as flower and vegetable gardens. On 16 June 1862, the couple hosted the first ball in the new building, celebrating Queen Victoria's birthday. In 1864 at Ipswich, Queensland, Diamantina turned the first sod for Queensland's first railway-line between Ipswich and Bigge's Camp (later Grandchester) using with a silver spade and a cedar wheelbarrow. Diamantina was involved in establishing the first Sunday School for children. Diamantina was concerned about social welfare in Brisbane and was an active patroness of a group of local ladies who