Uluru mapping and describing the geological history of the area, geologists refer to the rock strata making up Uluru as the Mutitjulu Arkose, and it is one of many sedimentary formations filling the Amadeus Basin. Uluru is dominantly composed of coarse-grained arkose (a type of sandstone characterized by an abundance of feldspar) and some conglomerate. Average composition is 50% feldspar, 25–35% quartz and up to 25% rock fragments; most feldspar is K-feldspar with only minor plagioclase as subrounded grains and highly altered inclusions within K-feldspar. The grains are typically in diameter, and are angular to subangular; the finer sandstone is well
Attraction to transgender people to 92% identified their sexual identity as straight or bisexual. A study employing the penile plethysmograph demonstrated that the arousal patterns, genital and subjective, of men who self-report attraction to trans women are similar to those of straight men, and different from those of gay men. The study showed that those men, also known in literature as "gynandromorphophiliacs", are much more strongly aroused to female than to male stimuli. They differ from both straight and gay men, however, in displaying strong arousal to stimuli featuring trans women, which in this group was as arousing as the female stimuli. The study