Robert B. Hargraves

TL;DR: In this article, anisotropic magnetic interaction between the irregular magnetite grains is suggested as the basic cause of AMS in pristine basic igneous rocks in terms of flow-orientation of ellipsoidal magnetite grain.

TL;DR: It is estimated that a new ferrimagnetic substructure created by ferrous–ferric ‘contact layers’ that reduce charge imbalance along lamellar contacts between antiferromagnetic haematite and paramagnetic ilmenite can have a saturation magnetization up to 55 kA m-1—22 times stronger than pure haem atite—while retaining the high coercivity and thermal properties of single-domain haemAtite.

TL;DR: Pathfinder is the best known location on Mars, having been clearly identified with respect to other features on the surface by correlating five prominent horizon features and two small craters in lander images with those in high resolution orbiter images and in inertial space from two-way ranging and Doppler tracking as discussed by the authors.

TL;DR: Three permanent magnet arrays were mounted on each Viking lander: a strong array fixed on a photometric reference test chart on top of the landers; and two arrays, one strong and one weak, incorporated into the backhoe of the surface sampler as discussed by the authors.

TL;DR: In this paper, the authors show that a majority of the kimberlites formed within 5° of a mantle hotspot and that the correlation between kimbersite/hotspot correlation is significant at above the 90% level.