A Citizen Science project supported by :: Local Land Services :: Shoalhaven City Council :: Shoalhaven Landcare :: Gondwana Coast Fossil Walk :: Milton Rural Landcare
Home Fossils and Geological Features Other Geological Features Drop Stone

Drop Stone

Drop Stone

Boulders, cobbles, pebbles and gravel in layers of otherwise fine sedimentary rocks are all glacial erratics or drop stones picked up in valleys by moving glacial ice to the south. The glacial ice broke up at the coast to form icebergs which carried the load of rocks and rock fragments north. As the ice melted the rocks dropped into the silty seafloor. 

Drop stones include metamorphic rocks such as schist, phyllite, slate, hornfels, meta-chert and quartzite; igneous rocks such as rhyolite, ignimbrite, syenite, dolerite, and granite with occasional sedimentary rocks such as clongomerate and brecia. The drop stones are of Cambrian, Ordivician or Devonian origin, much older than the Permian sediments along the coast.

Page 1 of 1 pages - image sightings only 7 7 7

Drop Stone (Drop Stone) at Ulladulla, NSW - 8 Mar 2019 by CBrandis Drop Stone (Drop Stone) at South Pacific Heathland Reserve - 27 Feb 2019 by CBrandis Drop Stone (Drop Stone) at South Pacific Heathland Reserve - 4 Feb 2019 by CBrandis Drop Stone (Drop Stone) at South Pacific Heathland Reserve - 4 Feb 2019 by CBrandis Drop Stone (Drop Stone) at South Pacific Heathland Reserve - 20 Dec 2018 by CBrandis Drop Stone (Drop Stone) at Murramarang National Park - 24 Jun 2018 by Stewart Drop Stone (Drop Stone) at Morton National Park - 22 Jun 2018 by Stewart
Drop Stone (Drop Stone) at Ulladulla, NSW - 8 Mar 2019 by CBrandis
Drop Stone (Drop Stone) at South Pacific Heathland Reserve - 27 Feb 2019 by CBrandis
Drop Stone (Drop Stone) at South Pacific Heathland Reserve - 4 Feb 2019 by CBrandis
Drop Stone (Drop Stone) at South Pacific Heathland Reserve - 4 Feb 2019 by CBrandis
Drop Stone (Drop Stone) at South Pacific Heathland Reserve - 20 Dec 2018 by CBrandis
Drop Stone (Drop Stone) at Murramarang National Park - 24 Jun 2018 by Stewart
Drop Stone (Drop Stone) at Morton National Park - 22 Jun 2018 by Stewart

1 

View distribution

Species information

  • Drop Stone Scientific name
  • Drop Stone Common name
  • Not Sensitive
  • Cosmopolitan
  • Non-Invasive
  • 5.618m Recorded at altitude

Location information

Follow Drop Stone

Receive alerts when new sightings are reported

Subscribe
326394 sightings of 6731 species in 883 locations from 517 members
Proudly Australian made, owned and hosted CCA 3.0 | privacy