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This bridge crosses the San Andreas earthquake fault near Parkfield, in central California. The bridge is twisted from previous earthquakes and tectonic plate movement.
The valleys and mountain ridges here are caused by rotational block faulting. Huge blocks of the Earth's crust tip like seesaws; the east side going down to form the valley while the west side goes up forming a mountain range. Where two of these tipping blocks meet side by side, a fault is formed between them with the rising side of one shearing past the descending side of the other. Erosion wears down the mountain and deposits sediments in the valley, yet the faulting drops the valley faster than the sediments can fill it, thus creating this basin below sea level. Over millions of years, more than 9,000 feet of sand, silt, gravel and salt filled the valley, yet geologic forces are still at work. The fault scarp visible in this photo was created by a massive earthquake about 2,000 years ago that dropped Death Valley several feet. Another such event will lower the valley even farther below sea level.
Fault is in the roadcut to the right of the photo. In the distance, on the other side of the road, is the white Virginia Dale Church. The dark hill on the horizon is the Sherman Granite on the Wyoming - Colorado border.
Seen here on its way to a driver training changeover due to a fault with another vehicle. For its age this drives really well and puts more modern vehicles to shame.
Hossein Valamanesh
Sandstone, wood and bronze sculpture, 1996
Riverside Quay, Southbank (Melway ref. 1A, J12)
Hossein Valamanesh was born in Tehran, Iran, in 1949 and arrived in Australia in 1970. His distinguished career has involved national and international solo exhibitions across a variety of mediums.
Originally, his Fault Line, created for its Southbank site, comprised a 70-metre granite path to the river’s edge, a derelict wooden jetty, a sandstone-veneer ‘ruin’ and two bronze half-figures and a rowboat. The sculpture reflected Valamanesh’s abiding interest in memory, destruction and survival.
Fault Line was partially decommissioned in 2007. By then, the two figures had already been irreparably damaged and were removed, and the sandstone ‘ruin’ at the southern extremity had become impossible to maintain and keep safe. The regrettable decision was made to decommission these elements of the work, along with the bronze rowing boat and single oar that had not been stolen. In an effort to retain some presence of the ‘ruin’, a trace of its plan was made using the original sandstone. This memory trace is flush with the surrounding ground surface. The boat and remaining oar have been stored offsite.
Photograph by Louis Porter
This is the Kern Front Fault Line. It hasn't caused any major earthquakes in our area in a while. But the fault is always on the move. You can see the bump when I drive over it. The road is always being patched there. The road here was repaved in 1984. So you can see that the earth has moved the road a lot. I noticed though in the area where I live that bumps in the roads are starting to show up. Most noticably on Norris Road just South of Meadows Field in Oildale, California.
Commemorating the 1906 San Andreas Quake. The fault runs through this point. The land to the left moved 9 feet (about 3 meters) northward during the quake. Farther than I can jump.
While walking along the beach, I discovered a prominent fault exposed in the rocks along the buff. The sedimentary layers are offset with the thin-bedded grey shales on the left side dropping down in relation to the thick-bedded orange sandstone on the right side.
Formed from the Bungarider Fault, one of three large faults in a NW-SE direction on the proprerty.
PS Breccia is an Italian word with the 'cc' presumably pronounced as in capuccino (which would have been nice in the remote location!)
The valleys and mountain ridges here are caused by rotational block faulting. Huge blocks of the Earth's crust tip like seesaws; the east side going down to form the valley while the west side goes up forming a mountain range. Where two of these tipping blocks meet side by side, a fault is formed between them with the rising side of one shearing past the descending side of the other. Together, many of these huge blocks of land create what is known as basin and range topography. Erosion wears down the mountain and deposits sediments in the valley, yet the faulting drops the valley faster than the sediments can fill it, thus creating this basin below sea level. Over millions of years, more than 9,000 feet of sand, silt, gravel and salt filled the valley, yet geologic forces are still at work. The fault scarp visible in this photo was created by a massive earthquake about 2,000 years ago that dropped Death Valley several feet. Another such event will lower the valley even farther below sea level.