788 C. Submarine Geology and Geophysics OLR(1979)26(12)

79:6065 Poppe, B. B., 1979. Historical survey of U.S. seismo-

graph stations. Prof. Pap. U.S. geol. Surv., 1096:389 pp.

A comprehensive compilation of detailed information (operators, instrumentation, locations, archives) about the nearly 1500 seismograph stations in the U.S., Trust Territories, Panama and Puerto Rico is presented through June 1977 even including specifics on stations which no longer offer data services. Includes appendices of station codes and regional maps of stations. (izs)

79:6066 Scotese, C. R., R. K. Bambach, Colleen Barton, Rob

van der Voo and A. M. Ziegler, 1979. Paleozoic base maps. J. Geol., 87(3): 217-277.

For each of seven Paleozoic intervals seven world maps are presented: a place-named locality map, four paleogeographic maps and two outline maps (worksheets). Mercator, Mollweide and stereographic polar projections are all used. The maps are intended for use in preparing various paleontological and tectonic reconstructions. Ca. 100 references. Department of the Geophysical Sciences, The University of Chicago, Chicago, Ill. 60637, U.S.A. (fcs)

79:6067 Semikhatov, M. A., C. D. Gebelein, Preston Cloud,

S. M. Awramik and W. C. Benmore, 1979. Stromatolite morphogenesis--progress and prob- lems. Can. J. Earth Sci., 16(5): 992- I 015.

The full relevance of stromatolites for paleomicrobiology, paleoecology and pre-Phanero- zoic biostratigraphy will remain obscure until morphogenetic enigmas are deciphered. This overview emphasizes relationships among microstructure, laminar details and gross morphology of ancient stromatolites and the microbial composition ~ and laminar characteristics of analogous modern microbial mats. Problems of nomenclature, classification and biological affinities; and relations of stromatolites with apparently non-biological entities, spring mounds, sinter cones, thrombolites and cryptalgalaminates are discussed. Includes l0 micrographs, a worldwide stromatolite biogenic analog distribution map, a species list of algal mat- builders and ca. 150 references. Geological Institute, USSR Academy of Sciences, Pizhevsky Perulok 7, Moscow, U.S.S.R. (izs)

79:6068 Shimozuru, D. et al., 1976. Report on volcanic activi-

ties and volcanologieal studies in Japan for the period from 1971 to 1974. Rec. Prog. nat. Sci. Japan, 1: 57-73. Figures include photos of a pyro- elastic flow, summit explosion and birth of the Nishinoshima-shinto volcano.

79:6069 Smith, P. J., 1979. West African membrane contro-

versy. (Report.) Nature, Lond., 279(5716): 757-758.

In 1973 Turcotte and Oxburgh introduced the idea that lithospheric plates, acting as thin membranes in drifting over the Earth, would be subject to tensions and compressions induced by latitude-dependent changes in curvature. Verification of such 'membrane tectonics' is more difficult, however. This report outlines the disagreements of Freeth (1978, 1979) and Thorpe and Wright (1979) as to whether West Africa and the Gulf of New Guinea convincingly demonstrate the concept. Department of Earth Sciences, Open University. (fcs)

79:6070 Sues, H.-D. and P. Taquet, 1979. A paehycephalo-

saurid dinosapr from Madagascar and a Laur- asia-Gondwanaland connection in the Cretaceous. Nature, Lond., 279(5714): 633-635. Museum of Comparative Zoology, Harvard University, Cambridge, Mass. 02138, U.S.A.

79:6071 Ward, S. N., 1979. Ringing P waves and submarine

faulting. J. geophys. Res., 84(B6): 3057-3062.

Shallow focus oceanic events can exhibit ringing P waves whose existence is attributed to submarine faulting in which a large fraction of the dislocation surface is located above the Moho, and is oriented such that significant compressional energy is propagated upward. Such earthquakes are likely to disrupt the seabed, thus ringing P waves can be diagnostic of a high tsunami potential. Geological Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, Calif. 92093, U.S.A. (fcs)