Fractures

Fracture

  • Fracture FractureThe separation of an object or material into two or more pieces under the action of stress.
  • Bone fracture Bone fracture A medical condition in which there is a damage in the continuity of the bone.
  • Fracture (2007 film) Fracture (2007 film)A 2007 American-German legal drama film, starring Anthony Hopkins and Ryan Gosling, and directed...
  • Fracture (geology) Fracture (geology)Any separation in a geologic formation, such as a joint or a fault that divides the rock into two...
  • Fracture (mineralogy) Fracture (mineralogy)The texture and shape of a rock's surface formed when a mineral is fractured.
  • Fracture (company)An Internet-based photo finishing service.

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  • ASUMarsSpaceFlight posted a photo:

    Fault-driven collapse on Pavonis Mons (THEMIS_IOTD_20171108)

    This image shows the western part of the smaller summit caldera on Pavonis Mons. On this side of the caldera is a complex region of fault related collapse of the wall of the caldera. Several intersecting faults are visible to the top and center part of the image.

    The faults would have formed areas of weakness in the caldera wall, precipitating into gravity driven down slope movement of materials. This caldera is approximately 5 km (3 miles) deep. In shield volcanoes calderas are typically formed where the surface collapses into the void formed by an emptied magma chamber.

    This martian scene spans 18 x 62 kilometers (11 x 38 miles). To see where on Mars this area lies, and to download high-resolution versions of the image, go to bit.ly/2AslwVr

    See the Red Planet Report at bit.ly/14KXe4O for updates on Mars research and exploration. For more about Mars geology, check out the Mars-ePedia: bit.ly/1fnXbhw

    For the latest THEMIS Mars images as received by mission scientists, see bit.ly/1d6HA7o . To learn more about the THEMIS camera and its Mars images, see bit.ly/13YOfgm .

    This image is in the public domain and may be republished free of charge, but if used it should be credited as NASA/JPL-Caltech/Arizona State University.

    Pavonis Mons is one of the three aligned Tharsis Volcanoes. The four Tharsis volcanoes are Ascreaus Mons, Pavonis Mons, Arsia Mons, and Olympus Mars. All four are shield type volcanoes. Shield volcanoes are formed by lava flows originating near or at the summit, building up layers upon layers of lava. The Hawaiian islands on Earth are shield volcanoes. The three aligned volcanoes are located along a topographic rise in the Tharsis region. Along this trend there are increased tectonic features and additional lava flows.

    Pavonis Mons is the smallest of the four volcanoes, rising 14 km above the mean Mars surface level with a width of 375 km. It has a complex summit caldera, with the smallest caldera deeper than the larger caldera. Like most shield volcanoes the surface has a low profile. In the case of Pavonis Mons the average slope is only 4 degrees.

    NASA's Mars Odyssey spacecraft has spent over 15 years in orbit around Mars, circling the planet more than 69,000 times. It holds the record for longest working spacecraft at Mars. THEMIS, the IR/VIS camera system, has collected data for the entire mission and provides images covering all seasons and lighting conditions.

    Over the years many features of interest have received repeated imaging, building up a suite of images covering the entire feature. From the deepest chasma to the tallest volcano, individual dunes inside craters and dune fields that encircle the north pole, channels carved by water and lava, and a variety of other feature, THEMIS has imaged them all.

    For the next several months the image of the day will focus on the Tharsis volcanoes, the various chasmata of Valles Marineris, and the major dunes fields. We hope you enjoy these images!

  • toiyeuxem304 posted a photo:

    Crystal Fractures! Hooker Lake, New Zealand. By Dylan Toh [2048 x 1366] via https://t.co/X9y62EdjPG https://t.co/OwCwCtmCLP



    Crystal Fractures! Hooker Lake, New Zealand. By Dylan Toh [2048 x 1366] via t.co/X9y62EdjPG pic.twitter.com/OwCwCtmCLP

    — nguyentuan (@tuanvodich1) November 6, 2017

    from Twitter twitter.com/tuanvodich1
    November 07, 2017 at 01:57AM
    via tuanvodich1 ift.tt/2Ae6SjL

  • ASUMarsSpaceFlight posted a photo:

    Lava tube takes a turn (THEMIS_IOTD_20171106)

    This image shows part of the eastern flank of Pavonis Mons. Surface lava flows run down hill from the upper left of the image towards the bottom right. Perpendicular to that trend are several linear features. These are faults that encircle the volcano and also run along the linear trend through the three Tharsis volcanoes.

    This image shows a collapsed lava tube where a flow followed the trend of a graben and then "turned" to flow down hill. Graben are linear features, so lava flows in them are linear. Where the lava flow is running along the surface of the volcano it has sinuosity just like a river.

    The mode of formation of a lava tube starts with a surface lava flow. The sides and top of the flow cool faster than the center, eventually forming a solid, non-flowing cover of the still flowing lava. The surface flow may have followed the deeper fault block graben (a lower surface than the surroundings). Once the flow stops there remains the empty space lower than the surroundings, and collapse of the top of the tube starts in small pits which coalesce in the linear features.

    This martian scene spans 18 x 63 kilometers (11 x 39 miles). To see where on Mars this area lies, and to download high-resolution versions of the image, go to bit.ly/2zlUH7u

    See the Red Planet Report at bit.ly/14KXe4O for updates on Mars research and exploration. For more about Mars geology, check out the Mars-ePedia: bit.ly/1fnXbhw

    For the latest THEMIS Mars images as received by mission scientists, see bit.ly/1d6HA7o . To learn more about the THEMIS camera and its Mars images, see bit.ly/13YOfgm .

    This image is in the public domain and may be republished free of charge, but if used it should be credited as NASA/JPL-Caltech/Arizona State University.

  • orientalizing posted a photo:

    Rock 18

  • ASUMarsSpaceFlight posted a photo:

    Collapsing lava tubes on Pavonis Mons (THEMIS_IOTD_20171103)

    This image shows part of the southeastern flank of Pavonis Mons. Surface lava flows run down hill from the top left of the image to the bottom right. Perpendicular to that trend are several linear features. These are faults that encircle the volcano and also run along the linear trend through the three Tharsis volcanoes.

    This image illustrates how subsurface lava tubes collapse into the free space of the empty tube. Just to the top of the deepest depression are a series of circular pits. The pits coalesce into a linear feature near the left side of the deepest depression.

    The mode of formation of a lava tube starts with a surface lava flow. The sides and top of the flow cool faster than the center, eventually forming a solid, non-flowing cover of the still flowing lava. The surface flow may have followed the deeper fault block graben (a lower surface than the surroundings).

    Once the flow stops there remains the empty space lower than the surroundings, and collapse of the top of the tube starts in small pits which coalesce in the linear features.

    This martian scene spans 18 x 62 kilometers (11 x 38 miles). To see where on Mars this area lies, and to download high-resolution versions of the image, go to bit.ly/2xW0uNx

    See the Red Planet Report at bit.ly/14KXe4O for updates on Mars research and exploration. For more about Mars geology, check out the Mars-ePedia: bit.ly/1fnXbhw

    For the latest THEMIS Mars images as received by mission scientists, see bit.ly/1d6HA7o . To learn more about the THEMIS camera and its Mars images, see bit.ly/13YOfgm .

    This image is in the public domain and may be republished free of charge, but if used it should be credited as NASA/JPL-Caltech/Arizona State University.

    Pavonis Mons is one of the three aligned Tharsis Volcanoes. The four Tharsis volcanoes are Ascreaus Mons, Pavonis Mons, Arsia Mons, and Olympus Mars. All four are shield type volcanoes. Shield volcanoes are formed by lava flows originating near or at the summit, building up layers upon layers of lava. The Hawaiian islands on Earth are shield volcanoes. The three aligned volcanoes are located along a topographic rise in the Tharsis region. Along this trend there are increased tectonic features and additional lava flows.

    Pavonis Mons is the smallest of the four volcanoes, rising 14 km above the mean Mars surface level with a width of 375 km. It has a complex summit caldera, with the smallest caldera deeper than the larger caldera. Like most shield volcanoes the surface has a low profile. In the case of Pavonis Mons the average slope is only 4 degrees.

    NASA's Mars Odyssey spacecraft has spent over 15 years in orbit around Mars, circling the planet more than 69,000 times. It holds the record for longest working spacecraft at Mars. THEMIS, the IR/VIS camera system, has collected data for the entire mission and provides images covering all seasons and lighting conditions.

    Over the years many features of interest have received repeated imaging, building up a suite of images covering the entire feature. From the deepest chasma to the tallest volcano, individual dunes inside craters and dune fields that encircle the north pole, channels carved by water and lava, and a variety of other feature, THEMIS has imaged them all.

    For the next several months the image of the day will focus on the Tharsis volcanoes, the various chasmata of Valles Marineris, and the major dunes fields. We hope you enjoy these images!

  • ASUMarsSpaceFlight posted a photo:

    Faults on the flank of Pavonis Mons (THEMIS_IOTD_20171031)

    This image shows part of the western flank of Pavonis Mons. The linear features are faults. Faulting usually includes change of elevation, where blocks of material slide down the fault. Paired faults are call graben. The large depression is a graben, whereas most of the other faults are not paired. The rougher looking materials perpendicular to the faults are lava flows. "Downhill" is toward the upper left corner of the image.

    This martian scene spans 17 x 62 kilometers (11 x 38 miles). To see where on Mars this area lies, and to download high-resolution versions of the image, go to bit.ly/2xFaryO

    See the Red Planet Report at bit.ly/14KXe4O for updates on Mars research and exploration. For more about Mars geology, check out the Mars-ePedia: bit.ly/1fnXbhw

    For the latest THEMIS Mars images as received by mission scientists, see bit.ly/1d6HA7o . To learn more about the THEMIS camera and its Mars images, see bit.ly/13YOfgm .

    This image is in the public domain and may be republished free of charge, but if used it should be credited as NASA/JPL-Caltech/Arizona State University.

    Pavonis Mons is one of the three aligned Tharsis Volcanoes. The four Tharsis volcanoes are Ascreaus Mons, Pavonis Mons, Arsia Mons, and Olympus Mars. All four are shield type volcanoes. Shield volcanoes are formed by lava flows originating near or at the summit, building up layers upon layers of lava. The Hawaiian islands on Earth are shield volcanoes. The three aligned volcanoes are located along a topographic rise in the Tharsis region. Along this trend there are increased tectonic features and additional lava flows.

    Pavonis Mons is the smallest of the four volcanoes, rising 14 km above the mean Mars surface level with a width of 375 km. It has a complex summit caldera, with the smallest caldera deeper than the larger caldera. Like most shield volcanoes the surface has a low profile. In the case of Pavonis Mons the average slope is only 4 degrees.

    NASA's Mars Odyssey spacecraft has spent over 15 years in orbit around Mars, circling the planet more than 69,000 times. It holds the record for longest working spacecraft at Mars. THEMIS, the IR/VIS camera system, has collected data for the entire mission and provides images covering all seasons and lighting conditions.

    Over the years many features of interest have received repeated imaging, building up a suite of images covering the entire feature. From the deepest chasma to the tallest volcano, individual dunes inside craters and dune fields that encircle the north pole, channels carved by water and lava, and a variety of other feature, THEMIS has imaged them all.

    For the next several months the image of the day will focus on the Tharsis volcanoes, the various chasmata of Valles Marineris, and the major dunes fields. We hope you enjoy these images!

  • babaalexandernewdelhi posted a photo:

    October 20: World Osteoporosis Day is observed annually on October 20th, and launches a year-long campaign dedicated to raising global awareness of the prevention, diagnosis and treatment of osteoporosis and metabolic bone disease. #WorldOsteoporosisDay #

  • toiyeuxem306 posted a photo:

    Crystal Fractures! Hooker Lake, New Zealand. By Dylan Toh [2048 x 1366] via https://t.co/X9y62EdjPG https://t.co/OwCwCtmCLP

    via Blogger ift.tt/2zB2Plh

  • adamdavispowell posted a photo:

    IMG_1800

    Emma Louise // Mezko // Fractures at The Metro

  • adamdavispowell posted a photo:

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    Emma Louise // Mezko // Fractures at The Metro

  • adamdavispowell posted a photo:

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    Emma Louise // Mezko // Fractures at The Metro

  • adamdavispowell posted a photo:

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    Emma Louise // Mezko // Fractures at The Metro

  • adamdavispowell posted a photo:

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    Emma Louise // Mezko // Fractures at The Metro

  • adamdavispowell posted a photo:

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    Emma Louise // Mezko // Fractures at The Metro

  • adamdavispowell posted a photo:

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    Emma Louise // Mezko // Fractures at The Metro

  • adamdavispowell posted a photo:

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    Emma Louise // Mezko // Fractures at The Metro

  • adamdavispowell posted a photo:

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    Emma Louise // Mezko // Fractures at The Metro

  • adamdavispowell posted a photo:

    IMG_1758

    Emma Louise // Mezko // Fractures at The Metro

  • adamdavispowell posted a photo:

    IMG_1667

    Emma Louise // Mezko // Fractures at The Metro

  • adamdavispowell posted a photo:

    IMG_1625

    Emma Louise // Mezko // Fractures at The Metro