Marble Bar Rock Formation

It is well known for its extremely hot weather with a mean maximum temperature second only to wyndham western australia.

Marble bar rock formation.

The town was officially gazetted in 1893 following. Geological survey of western australia scientist dr kath grey explains it. The rock record and the appearance of life. Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism.

A pool in a 3 5 billion year old landscape near marble bar. This is a transcript of a quicktime movie 22 0 mb recorded in the pilbara in 2005. One full round of crust from formation until. The hottest town in australia.

Time is measured by geologists in terms of millions and billions of years. Historic mines along the eastern margin of the marble bar sub basin exploited pyritic gold bearing reefs as early as the late 1800 s. Marble is a metamorphic rock formed when limestone is subjected to high pressure or heat. There are a small number of towns in australia whose names have such a potency and such a power of association that they automatically conjure up images.

North of marble bar by looking at rock fabrics we discovered the remains of the oldest recorded gravitational overturn in the pilbara. Dr martin van kranendonk a geologist with the geological survey of western australia discusses the formation of the marble bar chert. It is well known for its extremely hot weather. Marble is a metamorphic rock composed of recrystallized carbonate minerals most commonly calcite or dolomite marble is typically not foliated although there are exceptions in geology the term marble refers to metamorphosed limestone but its use in stonemasonry more broadly encompasses unmetamorphosed limestone.

In 1891 the town boasted a. In its pure form marble is a white stone with a crystalline and sugary appearance consisting of calcium carbonate caco 3 usually marble contains other minerals including quartz graphite pyrite and iron oxides these minerals can give marble a pink brown gray green or variegated coloration. Originally the rock formation was thought to be marble hence the name but was later proven to be jasper. Marble bar is a town and rock formation in the pilbara region of north western western australia.

Marble is commonly used for sculpture and as a building material. The marble bar paleoplacer gold at marble bar novo is exploring for gold bearing conglomerates at the base of the fortescue group a thick sequence of ancient sedimentary and volcanic rocks. It is composed primarily of the mineral calcite caco 3 and usually contains other minerals such as clay minerals micas quartz pyrite iron oxides and graphite under the conditions of metamorphism the calcite in the limestone recrystallizes to form a rock that is.