Seismic evidence that the source of the Iceland hotspot lies at the core–mantle boundary

Seismic detection of folded, subducted l

Seismic detection of folded, subducted lithosphere at the core–mantle boundary

✍ Hutko, Alexander R.; Lay, Thorne; Garnero, Edward J.; Revenaugh, Justin 📂 Article 📅 2006 🏛 Nature Publishing Group 🌐 English ⚖ 746 KB

Seismic evidence for small-scale dynamic

Seismic evidence for small-scale dynamics in the lowermost mantle at the root of the Hawaiian hotspot

✍ Russell, Sara A.; Lay, Thorne; Garnero, Edward J. 📂 Article 📅 1998 🏛 Nature Publishing Group 🌐 English ⚖ 689 KB

Subducted banded iron formations as a so

Subducted banded iron formations as a source of ultralow-velocity zones at the core–mantle boundary

✍ Dobson, David P.; Brodholt, John P. 📂 Article 📅 2005 🏛 Nature Publishing Group 🌐 English ⚖ 250 KB

Chemical interaction of Fe and Al2O3 as

Chemical interaction of Fe and Al2O3 as a source of heterogeneity at the Earth's core–mantle boundary

✍ Dubrovinsky, L.; Annersten, H.; Dubrovinskaia, N.; Westman, F.; Harryson, H.; Fa 📂 Article 📅 2001 🏛 Nature Publishing Group 🌐 English ⚖ 212 KB

The global network of plate boundaries c

The global network of plate boundaries can be divided into two discrete subnetworks containing the spreading and subduction boundaries, respectively. We advocate that this division is a stable pattern that derives from consistency rules in rigid-plate rotations. Subduction is distributed along a single, long subnetwork, hence organizing the mantle convection as a single, long downwelling wall and two lower mantle upwelling columns, at the Pacific and African sides of the Earth, respectively. The columns should merge upward between Antarctica and Australia to reach the single, long spreading subnetwork. The flow encircles two toric volumes that escape convectional mixing and are the likely sources of the two, Atlantic–Indian and Pacific, hot spot domains.

✍ L.-E. Ricou 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 197 KB

The global network of plate boundaries can be divided into two discrete subnetworks containing the spreading and subduction boundaries, respectively. We advocate that this division is a stable pattern that derives from consistency rules in rigid‐plate rotations. Subduction is distributed along a sin