Rosebud Falls (North West Queensland, Australia's Kalkadoon Country)

            The Corella Formation between Cloncurry and Mary Kathleen, northwest Queensland, was later modified (metamorphosed) by moderately high temperatures, and as a result, calcium-rich silicate minerals like hornblende, diopside and scapolite crystallised. The resulting rocks are known as calc-silicates. Crustal forces also compressed them to generate spectacularly folded, layered rocks typical of the formation. The Quilalar Formation of the same age northwest of Mount Isa was not modified by such high temperatures.

The idea that these limestones, dolomites and other sediments formed in a hyper-saline sea comes from the widespread scapolite in them. This is a complex metamorphic mineral which requires abundant sodium, chlorine, and sulphate to crystallise - these are abundant in hyper-saline water.

As well as being metamorphosed, the Corella Formation was extensively permeated by hot fluids rich in sodium, potassium, and iron. This metasomatism resulted in the growth of reddish feldspars (albite and microcline) and iron-rich silicates such as epidote and amphibole, as well as additional scapolite. The fluids causing this 'red-rock alteration' are regarded by many geologists as a necessary precursor for the formation of the iron-oxide-copper-gold deposits which occur in the Cloncurry region.

Around Cloncurry, parts of the Corella Formation have been broken up to form a breccia (blocks of the original rocks mixed erratically in a matrix of finer material). The cause of the breccia remains uncertain but seems to be a process which post-dates the laying down of the rocks. During deformation and metamorphism, some layers will react differently to the strain, some being brittle and others being more plastic, and this contrast can lead to breaking of the more brittle layers. Other ideas are that it formed by a process called hydraulic fracturing by fluids escaping from later granite intrusions or by gases from deep in the crust. Either way, the breccia is a widespread but enigmatic rock type.

Source: Rocks and Landscapes of Northwest Queensland by Laurie Hutton & Ian Withnall.

Taken on: January 1, 2022

Tags:

water

waterhole

creeks

stream

streams

streamway

estuary

swim

swimming

sky

skies

rain

rains

rainy

field

fields

desert

deserts

deserted

dirt

dirty

gravel

sand

sands

nature

natural

tree

trees

gum

gums

plant

plants

rock

rocks

animal

animals

marsupial

marsupials

lizard

lizards

frog

frogs

dry

arid

terrain

wildlife

isolate

isolated

isolation

desolate

desolation

peaceful

quiet

aboriginal

indigenous

kalkadoon

mitakoodi

european

europeans

people

peoples

culture

cultural

history

historic

heritage

outback

cloncurry

mount isa

north west

queensland

australia « less

Sets appears in: • North West Queensland (Kalkadoon/Mitakoodi Country)

Groups appears in: • Australian Travel Images • Photography more » • !FlickrSoup for Soul • Flickr Nature • Photography Corner • Flickr, let's make it a better place! • australian flickr {2 pictures a day} • Your photo goes here! no 30/60 • Queensland • Flickr Australia • Australian Photographers!!!! • *** Flickr's Most Creative Shots *** • I bring my camera everywhere (no 30/60 limit) • Get noticed • Your Best Photography • Nature...Anything Goes • National Flickr Graphic • Photography Club • Dragon Gold Award " The Best Of Flickr " • nature's composition • Photography Magazine, I Heart • Land of Oz (This is Australia!) • !!Perfect Composition!! • Photography 24/7 {We need some activity!} • Western Queensland • The Hundred Club of Flickr • Flickr United (Award 3) • Flickr Community (INVITE ALL CONTACTS) • Flickr Social Club • Queensland Australia • Flickr Queensland • Australia All Over • Around Australia • Outback of Australia • Queensland Photographers Australia • Flickr center • Photography Week • My Country, My Dreaming • World Photographers' Photos WPP • Landscapes Only • Your best of the best • The Best ... • ㋡ flickr ○● DEPOT ㋡ • !*ALL ARE WELCOME*! • ~The View from Above (No AI, CGI or Small World) • Photo Hog 12 • This is Why I Bought A Camera • !*Flickr All Stars*! • Nature and Animals (Wild Only) • Pictures of the World. • Droning on and on • Drones - QuadCopter - Multirotors ... around the world • The best picture of the world • PHOTOGRAPHY Colors • Australia, Our Great Southern Land • Travels With My Camera - Australia • The best photographs from around the world. • Photo-Phactory • wildlife and the wild • Drone Footage • All Your Photos and Mine (No 30/60 limit - Photos from anywhere) « less

Camera: DJI FC2103, f/2.8, 1/500 sec, 4.5mm, ISO 100 (more info) (hide info)

Camera:	DJI FC2103
Aperture:	f/2.8
Exposure Time:	0.002 sec (1/500)
Focal Length:	4.5mm
ISO:	100
Exposure Bias:	-0.7 EV
Flash:	No flash function
Exposure Program:	Manual
Exposure Mode:	Manual
Metering Mode:	Average
White Balance:	Auto
Sharpness:	Hard
Color Space:	sRGB
Software:	Adobe Photoshop Lightroom Classic 11.1 (Windows)
Show full info

Stats: 1,795 views / 2 comments

Link to this photo view:
Link to this photo large view: