A total of 40 samples from carbonates and 8 samples from silicate rocks were analyzed from the Sangan iron skarn deposit to examine behavior of the oxygen and carbon isotopes. The higher values of ?18O are from metamorphic calcite and dolomite and lower ones are from granitic rocks. Although the ?18O and ?13C values of calcite and dolomite in marble yield the highest values in the Sangan deposi...

The travertine deposit springs are located on the southeast of the Damavand Volcano, 85 km northeast of Tehran Province. The deposits of these springs mainly outcropped with cascade, hill, conical, layered, calcareous Tufa and Fissure-Ridges morphologies. Travertine studies have usually been conducted based on field observations, geochemistry and hydrology. The tectonic activity of the region, ...

a total of 40 samples from carbonates and 8 samples from silicate rocks were analyzed from the sangan iron skarn deposit to examine behavior of the oxygen and carbon isotopes. the higher values of ?18o are from metamorphic calcite and dolomite and lower ones are from granitic rocks. although the ?18o and ?13c values of calcite and dolomite in marble yield the highest values in the sangan deposi...

a total of 40 samples from carbonates and 8 samples from silicate rocks were analyzed from the sangan iron skarn deposit to examine behavior of the oxygen and carbon isotopes. the higher values of ?18o are from metamorphic calcite and dolomite and lower ones are from granitic rocks. although the ?18o and ?13c values of calcite and dolomite in marble yield the highest values in the sangan deposi...

The deployment of CO2 capture and storage (CCS) negative emissions technologies (NETs) are crucial to meeting the net-zero target by year 2050, as emphasised Glasgow Climate Pact. Over years, several energy planning models have been developed address temporal aspects carbon management. However, limited works incorporated CCS NETs for bottom-up at individual plant scale, which is considered in t...

Abstract. Calcite and dolomite are the two most common minerals in carbonate-bearing faults shear zones. Motivated by observations of exhumed seismogenic Italian Central Apennines, we used a rotary-shear apparatus to investigate frictional microstructural evolution ca. 3 mm thick gouge layers consisting 50 wt % calcite dolomite. The gouges were sheared at range slip rates (30 µm s?1–1 m s?1), d...

Continental arcs have an episodic magmatic activity over long-time periods, which is believed to modulate long-term climate. Island also the potential release large amount of CO 2 into atmosphere, but whether they display history throughout their lifespan that contributes (>10 Ma) climate changes remains open question. To set additional constraints on island arcs, here we examine fresh b...

The aim of this study was to determine a simple routine procedure to preserve, decarbonate and analyse low-carbonated filters of suspended particulate organic matter (POM) for particulate organic carbon and nitrogen content, δC and δN. Our goal was to analyse these four parameters from a single and entire filter of POM without altering the organic material. First, freezing (-20°C) versus oven-d...

Travertines formed of crystalline crust have been widely reported, but there has not focus on their geochemical characteristics. We therefore carefully conducted a series investigations and U-Th dating travertine mound mainly composed from Sobcha (southwest China) to determine features geological implications. The travertines dominantly consist granular crystals fan show δ13C 3.4‰ 4.9‰ V-PDB, δ...

The Hunt Mo skarn deposit is one of the best examples of a late tectonic, granitic pegmatite-related, skarn system in the Grenville province. An Re-Os age of 1069 ± 11 Ma was obtained from a molybdenite crystal (6.4 ppm Re) hosted in proximal skarn (sample 50O) consistent with a contact metasomatic origin related to the granitic body. Although less evolved than other Grenvillian pegmatites, the...