From the article:
“Despite several hypotheses, the origin and supposed long survival of inselbergs is a mystery for the secular interpretation. Geomorphologists Twidale and Bourne state: “That an inselberg could survive for so long as is suggested here calls for considerable mental adjustment.”16 They later said that all hypotheses which attempt to explain the exposure of landforms for tens of millions of years fall short of solving the age problem:
“Various mechanisms and factors have been suggested in explanation of such very old palaeoforms (unequal activity, reinforcement mechanisms, stability of rocks when dry) … but they alleviate rather than resolve the difficulty.”17”
It’s a rock that is more resistant to erosion than its surroundings. Nothing more complicated than that.
https://en.wikipedia.org/wiki/Uluru
The remarkable feature of Uluru is its homogeneity and lack of jointing and parting at bedding surfaces, leading to the lack of development of scree slopes and soil. These characteristics led to its survival, while the surrounding rocks were eroded.[10]
https://en.wikipedia.org/wiki/Uluru
The remarkable feature of Uluru is its homogeneity and lack of jointing and parting at bedding surfaces, leading to the lack of development of scree slopes and soil. These characteristics led to its survival, while the surrounding rocks were eroded.[10]