Hello Matteo and list, There is a two-page article "The Discovery of a Probably Well-Preserved Impact Crater Field in Central Italy" by J. Orm� et al. in the proceedings of the 33rd Lunar and Planetary Science Conference (2002). The article is available online at the website of the LPI:
http://www.lpi.usra.edu/meetings/lpsc2002/pdf/1075.pdf (PDF document, 369 KB) The article includes a map of the topography of the crater field, a nice color photo of the main crater (140 x 115 meters), and a diagram of magnetic anomalies at the crater field. The authors have this to say about the largest crater: "This crater represents a rare example of well-preserved, small explosion craters from impacts into unconsolidated target materials." The topography of this crater is different from that of most small impact craters: "A shallow moat outside the western part of the rim, and compressed sediments in one drill core, give further indications for a downwarping of strata at the rim rather than the uplift that could be expected. Downwarped and compressed strata have been noticed at experimental TNT explosion craters in loose sediments, as well as at the impact craters formed in loess at Campo del Cielo, Argentina. This circumstance indicates that the Sirente crater field can serve as a well-preserved example for cratering mechanics studies of small craters formed in loose sediments." Best wishes to all, Piper ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
