Sandstone of Grampians
Halls Gap to the Pinnacle Loop 9km hike.
Grampians National Park, Victoria, Australia.
Geology:
The Grampians National Park is an outstanding geological spectacle - a dramatic land-form with sweeping slopes, craggy eastern peaks and massive sandstone cliffs that contrast with surrounding plains.
The distinctive cuesta landform of the Grampians consists of abrupt escarpments and generally west-dipping slopes. The sediments, which make up the Grampians, were deposited about 400 million years ago (Devonian period) and are approximately 3700 m deep. They are composed of layers of massive sandstones, siltstones and mudstones which were folded and tilted a few millions years later.
Some sources says volcanic activity occurred around 395 million years ago as well with granitic magma intruded into the Grampians sediments, resulting in deeply weathered batholiths, dykes and sills.
Have a look at satellite map of this place - amazing.
Sandstone of Grampians
Halls Gap to the Pinnacle Loop 9km hike.
Grampians National Park, Victoria, Australia.
Geology:
The Grampians National Park is an outstanding geological spectacle - a dramatic land-form with sweeping slopes, craggy eastern peaks and massive sandstone cliffs that contrast with surrounding plains.
The distinctive cuesta landform of the Grampians consists of abrupt escarpments and generally west-dipping slopes. The sediments, which make up the Grampians, were deposited about 400 million years ago (Devonian period) and are approximately 3700 m deep. They are composed of layers of massive sandstones, siltstones and mudstones which were folded and tilted a few millions years later.
Some sources says volcanic activity occurred around 395 million years ago as well with granitic magma intruded into the Grampians sediments, resulting in deeply weathered batholiths, dykes and sills.
Have a look at satellite map of this place - amazing.