Bibliography

http://www.mcmc.org.au/
http://en.wikipedia.org/wiki/Sedimentary_rock
http://en.wikipedia.org/wiki/Scoria
http://home.vicnet.net.au/~foopnp/opnp.htm
http://www.parkweb.vic.gov.au/1park_display.cfm?park=167
http://en.wikipedia.org/wiki/Dights_Falls
http://www.melbourneplaygrounds.com.au/melbourneplaygrounds-info.php?id=21388
http://www.onlymelbourne.com.au/melbourne_details.php?id=3084

Yarra Bend Park: Part Six

What type of rock was used to construct the mill and millrace? Where did this rock come from?

The rock used to construct the mill and the millrace was a sedimentary rock type called bluestone blocks, that were taken from the Dight's old mill building.

Yarra Bend Park: Part Five

What is a mill? When was this mill constructed? Why was it constructed here? Why has this mill been preserved when most mills have not?

A mill is an operation to break down solid pieces and is often associated with breaking down wheat products. The mill was constructed in the early 1840's so a weir that was built on a natural rock bar so it could supply water to the mill. It was preserved because it was a water-turbine powered mill and the largest and most sophisticated mills built at the time in Victoria.

Yarra Bend Park: Part Four

How long might it take to make a sedimentary layer? How long might it take to make the rock face you see opposite?

Why aren't these rocks still at the bottom of the sea?

What geological features are visible?

The length of how long it takes for a sedimentary layer to be made varies. It may happen rapidly if evaporation of salt flats create chemical sedimentary rocks or slowly, if it's gradually depositing sediments by tidal waters which can take millions of years.
It would take millions of years to make the rock face seen opposite because of tidal waters, weathering and erosion.

The rocks aren't at the bottom of the sea any more because it got all washed up and tossed up onto shore.

The geographical features that are visible are the layers of rock and the folding.

Yarra Bend Park: Part Three

Dight's Falls

 A photograph and a description of Dight's Falls. Are there any other falls on the Yarra?

Dight's Falls are sandstones and interbedded mudstones that crop out as cliffs and bluffs along the left side of the bank of Yarra River. The cliffs today were former river bluffs that came up again as Yarra River was turned to the south by lava flows pouring down Merri Creek and Darebin Creek valleys.

They are naturally occuring rock falls that is located below the junction of Yarra River and Merri Creek. Dight's Falls has sandstone on the east and volcanic deposits on the north and west. It was first seen by Europeans and its name refers to John Dight and his brother Charles. 

It was used as a trading route and it was significant to Aboriginal clans. The completion of the Eastern Freeway in 1972 destroyed the Deep Rock Basin and transformed the area into a place to attract tourists. 
There are no other falls on the Yarra.

Yarra Bend Park: Part Two

 How has the natural environment of Merri Creek been impacted by the construction of the freeway?
 The natural environment of Merri Creek has been naturally slowly deteriorating due to weathering and it is recognised as a potentially hazardous site as there are a number of loose blocks on the cliff face and the steep rock of the face. The construction of the freeway has made Merri Creek worse than ever.

Yarra Bend Park: Part One

A map of Yarra Bend Park

A map of the general areas of Yarra Bend Park. Explain why Deep Rock is a significant place.

The Deep Rock is a significant place because it relates to Aboriginal history and when the Europeans arrived, they recognised the beauty of the park and they wanted to preserve it and keep it as a natural landmark.