This paper aims to provide information on rammed earth and masonry mortars of the Fernandina defensive Wall Lisbon, Portugal, which was built in second half 14th century. No previous exists concerning materials construction techniques used this structure, is essential increase knowledge define requirements for a reliable conservation. An experimental campaign carried out samples extracted nine ...

The enigmatic Cambrian animal chancelloriids were discovered in a wide range of taphonomic settings; however, preservation biomineralized sclerite microstructure was solely known from secondarily phosphatized skeletal remains. Here, we investigate uniquely pyritized chancelloriid the lower Guojiaba Formation southern Shaanxi Province, China, using combination advanced analytic techniques. Resul...

Abstract The aim of this research is to investigate the efficiency combustion structures, fuels used, structure maintenance and range related domestic activities. An experimental programme was carried out in which replicas archaeological Iron Age structures were put work. Based on available archaeobotanical records, various fuel types (wood, grasses, palm leaves animal dung) used. Variables suc...

Abstract Microbial communities were studied in redoximorphic microsites of highly heterogeneous Gleysol at a mm scale using 16S and 18S amplicon sequencing to demonstrate if the composition soil microbes reflects differences ferric ferrous micro‐sites. In both explored gley horizons with features (Bg2 Cg), mottles significantly enriched total P Fe depleted O, Si, Al, K Ca compared adjacent grou...

Natural mineral formations are a window into important processes leading to carbon storage and mineralized carbonate structures formed through abiotic and biotic processes. In the current study, we made an attempt to undertake a comprehensive approach to characterize the mineralogical, mechanical, and microbial properties of different kinds of speleothems from karstic caves; with an aim to unde...

A postlarva of Nanaloricidae (Loricifera) was found in the deep sea of the Guinea Basin. This postlarva belongs to a new species, Culexiregiloricus trichiscalida, which also represents a new genus. It inhabits clayish sediments with a high amount of calcitic multi-chambered shells of recent planktonic foraminiferans of 0.25 to 1.5 mm in size. This is the third report of a species of Nanaloricid...

Time-averaging, the mixing of fossils of different ages within a single bed, defines the limit of temporal resolution of the fossil record. Quantitative estimates of this resolution threshold have not been acquired for any group other than mollusks. This study provides the first quantitative estimates of time-averaging for brachiopods, extending our understanding of intrinsic, or group specific...

A study was conducted to determine the influence of different particle size limestone in layer diets on egg production and eggshell quality during the later stages of egg production (>54 weeks of age). Calcitic limestone (360 g Ca/kg), consisting of small (<1.0 mm), medium (1.0 2.0 mm) and large (2.0 3.8 mm) particles were obtained from a specific South African source that is extensively used i...