This final report summarizes the work completed on the two year pilot project, which concluded 31 July 2016. The first section summarizes the two previous reports to place the current work in context. Two new research results sections are included here. The first concerns the use of a synthetic peptide, mimicking natural eggshell protein believed to be influential in biomineralization, to exami...

The concentration of dissolved barium in seawater ([Ba]SW) is influenced by both primary productivity and ocean circulation patterns. Reconstructing past subsurface [Ba]SW can therefore provide important information on processes which regulate global climate. Previous Ba/Ca measurements scleractinian bamboo deep-sea coral skeletons exhibit linear relationships with [Ba]SW, acting as archives fo...

Acesta excavata (Fabricius, 1779) is a slow growing bivalve from the Limidae family and often found associated with cold-water coral reefs along European continental margin. Here we present compositional variability of frequently used proxy elemental ratios (Mg/Ca, Sr/Ca, Na/Ca) measured by laser-ablation mass spectrometry (LA-ICP-MS) compare it to in-situ recorded instrumental seawater paramet...

In this work, the consolidation efficiency of SiO2 nanoparticles (synthesized in Chemistry laboratories at Tor Vergata University Roma) was tested on Pietraforte sandstone surfaces belonging to bell tower San Lorenzo (Florence, Italy) and fully investigated. Nanoparticles large-scale mass production) have been characterized by XRD—X-Ray Diffraction; Raman FTIR—Fourier Transform Infrared spectro...

Synechococcus strain GL24 is a unicellular cyanobacterium that was isolated from Fayetteville Green Lake, New York, a meromictic lake which has high Ca and SO(4) concentrations. Epicellular mineralization of Synechococcus cells in the lake is the mechanism by which extensive calcitic bioherms (or microbial reefs) have been formed on the lake's shore and a marl sediment has been built on the lak...

Abstract The Paleoproterozoic Mârmorilik Formation in the Karrat basin of West Greenland hosts Black Angel Zn–Pb deposit. Chlorine-rich scapolite, zones with vuggy porosity and quartz nodules ore-bearing marble are herein interpreted to represent metamorphosed, vanished, replaced evaporites, respectively. Mineralization is closely associated anhydrite δ 34 S values (5.2–12.6‰) broadly comparabl...

Bulk carbon and oxygen stable isotopes of ancient shallow-marine carbonates can record the effects multiple palaeoenvironmental factors, but also imprint several post-depositional processes, which may alter original marine isotopic composition. In this study, isotope analyses were performed on bulk carbonate, bivalve calcitic-shell (Trichites) calcite vein samples from two stratigraphic section...

Abstract This work presents the manufacture of CKD-blended cement from raw materials such as clinker, gypsum, marble and kiln dust (CKD) obtained CIMENCAM Figuil, North Region Cameroon. The were first characterized through XRF chemical analyses. Chemical tests (proportion free lime, loss on ignition, sulfate, insoluble residues), physical (fineness, consistency, setting time, expansion), compre...

Lithium has proven a powerful tracer of weathering processes and chemical evolution seawater. Skeletal components marine calcifying organisms, in particular brachiopods, present promising archives Li signatures. However, incorporation mechanisms potential influence from biological or environmental conditions require careful assessment. In order to constrain systematics brachiopod shells, we con...

Two stalagmites from Nerja cave (Andalusia, Spain) were studied. The is well known because of its long human occupation the Upper Palaeolithic to Chalcolithic and abundant parietal prehistoric Art. aims this study twofold: i) compare uranium/thorium (230Th/234U) Carbon-14 (14C) ages obtained all along growth axis in order understand consequences diagenetic processes on validity radiometric ages...