Izu-Bonin-Mariana Arc - Boundaries of IBM Arc System

Boundaries of IBM Arc System

Crust and lithosphere produced by the IBM arc system during its ~50 Ma history are found today as far west as the Kyushu-Palau Ridge, up to 1,000 km from the present IBM trench. The IBM arc system is the surficial expression of the operation of a subduction zone and this defines its vertical extent. The northern boundary of the IBM arc system follows the Nankai Trough northeastward and onto southern Honshū, joining up with a complex system of thrusts that continue offshore eastward to the Japan Trench. The intersection of the IBM, Japan, and Sagami trenches at the Boso Triple Junction is the only trench-trench-trench triple junction on Earth. The IBM arc system is bounded on the east by a very deep trench, which ranges from almost 11 km deep in the Challenger Deep to less than 3 km where the Ogasawara Plateau enters the trench. The southern boundary is found where the IBM Trench meets the Kyushu-Palau Ridge near Belau. Thus defined, the IBM arc system spans over 25° of latitude, from 11°N to 35°20’N

Read more about this topic:  Izu-Bonin-Mariana Arc

Famous quotes containing the words boundaries of, boundaries, arc and/or system:

    Whereas the Greeks gave to will the boundaries of reason, we have come to put the will’s impulse in the very center of reason, which has, as a result, become deadly.
    Albert Camus (1913–1960)

    We love to overlook the boundaries which we do not wish to pass.
    Samuel Johnson (1709–1784)

    You say that you are my judge; I do not know if you are; but take good heed not to judge me ill, because you would put yourself in great peril.
    —Joan Of Arc (c.1412–1431)

    I am fearful that the paper system ... will ruin the state. Its demoralizing effects are already seen and spoken of everywhere ... I therefore protest against receiving any of that trash.
    Andrew Jackson (1767–1845)