The lunar regolith breccia Dhofar 1769, which was found in 2012 as a single 125 g piece the Zufar desert area of Oman, contains relatively large, dark-colored impact melt embedded fine-grained clastic matrix. internal texture fragment indicates repeated formation on surface, their brecciation, and mixing second, third, fourth generations brecciated rock types. chemical mineralogical data reveal...

Introduction: Dhofar 1428 is a lunar feldspathic breccia found in 2006. Bunch et al. [1] briefly described mineral chemistry of Dhofar 1428. Korotev and Zeigler [2] analyzed its bulk FeO and Sm compositions. Here, we report such detailed data for Dhofar 1428. Results and Discussion: Dhofar 1428 has a distinct breccia texture with numerous fragments of rock, mineral, and glass all welded by a gl...

38 Sequences of basaltic pillow lavas that transition upwards with systematic gradation from pillow 39 fragment breccias to fluidal bomb-bearing breccia to bomb-bearing lapilli tuffs are common at 40 Askja volcano, Iceland. Based on the detailed textural investigation of three of these sequences, 41 we argue that they record temporally continuous transition from effusive to explosive products 4...

Northwest Africa (NWA) 11962 is a lunar regolith breccia composed of wide range different clasts. The origin this meteorite confirmed by oxygen isotope analysis and the Fe/Mn ratio in pyroxene olivine. In present study, clasts matrix NWA are characterized optical electron microscopy along with microprobe analyses micro-Raman spectroscopy. has glassy impact melt matrix, which accounts for 35% su...

Lunar meteorite EET 96008 is a fragmental breccia that predominantly consists of basaltic mineral clasts (0.5–2 mm), along with minor lithic fragments and breccia clasts. The matrix consists mainly of smaller mineral fragments ( 0.5 mm), bound by glassy cement, the majority of which are pyroxene and plagioclase. The pyroxene possesses extensive exsolution lamellae. These lamellae, up to 1 m in ...

Kimberlite is described as a diverse and complex hybrid rock in the literature. It is also described as volatile rich, potassic, ultrabasic, igneous rocks that occur as volcanic pipes, dykes and sills1. The minerals present in kimberlites vary widely and can include from trace to predominance any of the following minerals: apatite, calcite, chlorite, diopside (pyroxene), magnetite, monticellite...

Introduction: An achondrite, Dhofar 007 (~27 kg) was found in the Oman desert and was initially classified as a cumulate eucrite [1]. However, Yamaguchi et al. [2] showed that a coarse-grained clast (CG clast) in Dhofar 007 has a high abundance of metallic phases and the high bulk Ni and Co contents, and suggested a possible relationship with mesosiderites. We performed an additional petrologic...

Introduction: The 3.8 km in diameter Steinheim Basin (Baden-Württemberg, SW Germany) is a small, complex impact structure hosted by a sequence of Triassic to Upper Jurassic sandstones, marls, and limestones that build up the Swabian Alb plateau [1]. The specific alignment of the Steinheim Basin, the 24 km in diameter and 14.4 Ma Ries crater, and the Central European tektite strewn field led [2]...