How Golda Meir, Indira Gandhi, and Margaret Thatcher Wrought a New Standard of Leadership. It is surely time to recognize what an immense improvement has been wrought in world standards of governance by the rise of female national leaders.
Shield volcanoes, the third type of volcano, are built almost entirely of fluid lava flows. Flow after flow pours out in all directions from a central summit vent, or group of vents, building a broad, gently sloping cone of flat, domical shape, with a profile much like that of a warrior's shield.
Viscous dacitic-to-rhyolitic lavas generally ooze out of the volcano's central vent to form symmetrical lava domes. In some cases, however, asymmetric flow down one side of the vent can produce an elongated extrusion, called a coulee coulÃ©e or a dome. flow