Sentences with phrase «igneous provinces»

While the biggest volcanic eruptions — including large igneous provinces like the Siberian Traps — are known to be linked to climate upheaval and even mass extinctions, emerging work shows that under the right conditions, smaller eruptions or series of eruptions can also affect climate.

They have all been associated with huge carbon emissions, from Large Igneous Provinces (Some debate on that regarding PETM).

(1) 40Ar39Ar dating and isotopic geochemistry of large igneous provinces.

In Earth's past the trigger for these greenhouse gas emissions was often unusually massive volcanic eruptions known as «Large Igneous Provinces,» with knock - on effects that included huge releases of CO2 and methane from organic - rich sediments.

Large Igneous Provinces and super continent: towards completing the plate tectonic revolution

Based on the volcanic record in and around Iceland over the last 56 million years and numerical modeling, Brown and Lesher show that high mantle temperatures are essential for generating the large magma volumes that gave rise to the North Atlantic large igneous provinces bordering Greenland and northern Europe.

«Our work offers new tools to constrain the physical and chemical conditions in the mantle responsible for large igneous provinces,» Brown said.

Such fiery events have produced large igneous provinces throughout Earth's history.

Their findings further substantiate the critical role of mantle plumes in forming large igneous provinces.

Areas in violet outline large igneous provinces.

Large igneous provinces, or LIPs, are huge pools of volcanic rocks poured out at the Earth's surface.

One suspect behind several mass extinctions is a kind of enormous volcanic zone called a large igneous province, or LIP.

Eventually the magma ran out, leaving a large igneous province — a 20 - mile - thick pile of volcanic rocks.

Central to their study is a large igneous province (LIP) in Russia called the Siberian Traps.

At the time when these eruptions took place, 717 million years ago, the Franklin large igneous province was near the equator, making it easier for the sulfur dioxide plumes to reach, and cross, the stratosphere and the troposphere.

High - precision dating of the Kalkarindji large igneous province, Australia, and synchrony with the Early — Middle Cambrian (Stage 4 — 5) extinction

Proposed hypothe - ses include (i) biogenic methane from gas hydrate dissociation (Dickens et al., 1995,1997); (ii) CO2 from extensive oxidation terrestrial organic carbon (Kurtz et al., 2003; Deconto et al., 2012); (iii) thermogenic methane derived from emplacement of a large 25 igneous province (LIP) in the North Atlantic (Svensen et al., 2010) or combinations of such sources (Sluijs et al., 2007; Panchuk et al., 2008).