Large igneous provinces (LIPs) are a continuum of voluminous iron and magnesium rich
rock emplacements which include continental flood basalts and associated intrusive rocks …

There has been considerable controversy concerning the role of chemical weathering in the
regulation of the atmospheric partial pressure of carbon dioxide, and thus the strength of the …

Although pH is a fundamental property of Earth's oceans, critical to our understanding of
seawater biogeochemistry, its long-timescale geologic history is poorly constrained. We …

Owing to advances in microanalytical techniques over the last 15 years, there is a growing
database on the volatile contents of subduction-related magmas as recorded in melt (glass) …

Over long periods of time (~ Ma), we may consider the oceans, atmosphere and biosphere
as a single exospheric reservoir for CO2. The geological carbon cycle describes the inputs …

We have measured 3He 4He ratios, δ13C-values and CO 23He ratios of fumaroles and hot
spring gases in three volcanic areas in Japan. The 3He 4He ratios, δ13C-values and CO …

Subduction zones modulate the global carbon cycle. Carbon is transported into the mantle
by the subducting slab and returned to the surface by degassing at arc volcanoes above the …

The flux of carbon into and out of Earth's surface environment has implications for Earth's
climate and habitability. We compiled a global data set for carbon and helium isotopes from …

Volatiles are lost from the Earth's mantle to the atmosphere, hydrosphere and crust through
a combination of subaerial and submarine volcanic and magmatic activity. These volatiles …

Flood basalts are a potentially important host medium for geologic sequestration of
anthropogenic CO2. Most lava flows have flow tops that are porous and permeable and …