Cosmogenic aluminum-26 and beryllium-10 burial dates of low-lying fossiliferous breccia in the caves at Sterkfontein, South Africa, show that associated hominid fossils accumulated in the Lower Pliocene. These dates indicate that the skeleton StW 573 and newly discovered specimens from Jacovec Cavern have much the same age: approximately 4 million years. These specimens are thus of an age simil...

While the well log-based lithology classi?cation has been extensively utilized in reservoir characterization, of carbonate sub-facies remains challenging due to subtle nuances conventional well-logs. The nuclear magnetic resonance (NMR) log provides extra information pore size and geometry features, improving differentiating sub-facies. Here we explore feasibility using ratio between NMR longit...

Northwest Africa (NWA) 7034 is the first breccia meteorite from Mars, and unlike the shergottite, nakhlite, and chassignite (SNC) martian meteorites, it matches the estimated chemical composition of martian crust. Here we show that the visible-infrared reflectance spectrum of NWA 7034 is unique compared to other SNCs and is more similar than them to remotely sensed data from Mars, suggesting th...

The timing of fault activity is a concern for geologists. This study used zircon U-Pb and apatite fission-track dating breccia to determine the upper lower limits time faulting. Guangsan in South China was taken as an example, thermochronology were applied surrounding rock breccia. demonstrated 74.9–91.8 Ma 73.9–93.5 dates, respectively, indicating that formed after 73.9 Ma. They also 71.6 ± 7....

The Ries Crater impact breccia deposits are accessible through a series of boreholes. In 2008, a further hole was cored near the village of Enkingen (SE Ries), accessing the crater breccias at the inner slope of the crystalline ring. The 100 m drill core comprises 21.2 m crater sediment above suevite to )86.24 m and a rather massive impact melt rock to endof-hole [1]. Downhole, the abundance an...

Copyright and Moral Rights for the articles on this site are retained by the individual authors and/or other copyright owners. For more information on Open Research Online's data policy on reuse of materials please consult the policies page. Introduction: Ungrouped achondrite NWA 4518 is an ultramafic polymict breccia with abundant FeNi-metal. The silicate chemistry of NWA 4518 is similar to th...

Introduction: NWA 7034 is a monomict breccia of volcanic [1] or impact [2,3] origin. Interestingly, the oldest zircon ages in the paired NWA7533 meteorite point at an ancient formation age (~4.43 Gyr, [3]), while disturbed younger zircon ages are observed [3], and the Rb/Sr age of NWA7034 is ~2.1 Gyr [1]. According to the initial study by Agee and co-workers [1], NWA7034 shares features with th...