most likely due to its recent formation, the crater floor has not been flooded by lava. the terrain along the bottom is hilly in the southern half while the north is relatively smooth. the central peaks consist of three isolated mountainous rises climbing as high as 1.2 km above the floor. these peaks are separated from each other by valleys, and they form a rough line along an east-west axis. infrared observations of these peaks during the 1980s determined that they were primarily composed of the mafic form of olivine.