Royal Cave

Figure 2. Plan view of the Dukes Cave system, showing the Royal Cave section (B6-B65) and the location of the two sampling sites, Reed Chamber and Bone Chamber, see Fig. 1 for overall location. Grids represent the Australian Map Grid, 1966, Zone 55, and are based on the Mount Tara 1 25 000 topographic sheet (8522-4-1).

Two sites within the Royal Cave part of the Dukes cave system were selected for palaeomagnetic sampling one within Level A ( Reed Chamber ), and one within Level C ( Bone Chamber ). The locations of both sites are indicated on Figure 2. 

Much of the Fairy and Royal Cave portions of the Dukes system consists of a flat-roofed epiphreatic passage at Level A (Fig. 4) the roof is a few meters above the level of the bed of Fairy Creek outside the cave. At one stage in its history this passage was almost completely filled with bedded fluvial sediments. Subsequently, the stream flowing through the cave has removed most of the sediment fill, although remnants are present in many places. Flowstone has covered much of this remaming sediment, but banks of unconsolidated material are exposed in the walls of the cave at several sites. 

The northern part of Royal Cave, near the B65 entranee (Fig. 2), consists of a high level passage, much of it with a flat roof (Level C Fig. 3). In places, such as Bone Chamber, this flat roof is cut across a pre-existing phreatieally enlarged joint (Fig. 5). This passage represents the uppermost epiphreatic level in the Dukes cave system, and is 16-18 m above Level A. 

De Fraipont, M. (1987). Chemical detection in Astyanax mexicanus, Teleostei, Characi-dae, (cave-dwelling form) as a function of group density. Annales de la Societe Royale Zoologiquede Belgique 117,63-67. 

Boyle recommended the freezing point of oil of aniseed (170 to 2o° C) as zero, because it was not necessary to wait for frosty weather before it solidified. Halley thought a cave might be selected where summer and winter temperatures are alike one such cave was known to Boyle, whilst Mariotte claimed that the cave under the Royal Observatory at Paris was also isothermal. Both Hooke and Newton chose the freezing point of water as their zero. 

Simon, E. and Willems, G. (1999) Gwynia capsula Jeffreys, 1859) and other Recent brachio-pods from submarine caves in Croatia. Bulletin de I Institute Royal des Sciences naturelles de Belgique, Biologie, 69, 15-21. 

---