Modern theories also suggest that Earth's anomalously large moon was formed catastrophically. Some near-surface brines in the western United States contain anomalously high concentrations of dissolved tungsten. In Costa Rica, Michelle caused anomalously high rainfall, resulting in flooding. Some large, hot mantle plumes have anomalously high He/He. Plastic crystals were discovered in 1938 by J. Timmermans by their anomalously low melting entropy. Certain glycoproteins, however, behave anomalously on SDS gels. Continental drift rates may have been anomalously high. The High Plains are anomalously high in elevation. The spectrum displays anomalously high levels of carbon. It is also believed that this anomalously high rate of recession may continue to accelerate. Those trees with broken tops will have anomalously high values. The Connecticut Legislature anomalously created two registration methods.