Meteorite shows evidence of ancient volcanism on a long-gone protoplanet

Meteorite shows evidence of ancient volcanism on a long-gone protoplanet

A meteorite older than Earth shows evidence of ancient volcanism on a long-gone protoplanet, Phil Plait, SYFY WIRE
https://www.syfy.com/syfywire/a-meteorite-older-than-earth-shows-evidence-of-ancient-volcanism-on-a-long-gone-protoplanet

Oldest-ever igneous meteorite contains clues to planet building blocks. University of Arizona, August 2, 2018
https://asunow.asu.edu/20180802-oldest-ever-igneous-meteorite-contains-clues-planet-building-blocks

Taylor, G.J., 2018. The Oldest Volcanic Meteorite: A Silica-Rich Lava on a Geologically Complex Planetesimal. Planetary Science Research Discoveries Report, Hawai'i Institute of Geophysics and Planetology
http://www.psrd.hawaii.edu/Aug18/PSRD-oldest-volcanic-meteorite.pdf

Some papers are:

Hoffmann, V.H., Wimmer, K., Hochleitner, R. and Kaliwoda, M., 2018, March. Northwest Africa (NWA) 11119---Probing an Unknown Early Planetary Body?. In Lunar and Planetary Science Conference (Vol. 49).
https://www.hou.usra.edu/meetings/lpsc2018/pdf/2468.pdf

Srinivasan, P., Dunlap, D.R., Agee, C.B., Wadhwa, M., Coleff, D., Ziegler, K., Zeigler, R. and McCubbin, F.M., 2018. Silica-rich volcanism in the early solar system dated at 4.565 Ga. Nature communications, 9(1), p.30-36. Open Access
https://www.nature.com/articles/s41467-018-05501-0

Yours,

Paul H.

Huge asteroid Vesta is actually an ancient protoplanet

Huge asteroid Vesta is actually an ancient protoplanet

Huge asteroid Vesta is actually an ancient protoplanet
(NASA's Dawn probe shows it is left over from the solar
system's early days) ABC News, May 10, 2012
http://www.msnbc.msn.com/id/47376079/ns/technology_and_science-space/

Vesta confirmed as venerable planet progenitor, Nature
News, May 10, 2012
http://blogs.nature.com/news/2012/05/vesta-confirmed-as-venerable-planet-progenitor.html

Asteroid collision that spawned Vesta's asteroid family
occurred more recently ..., Phys.Org, May 10, 2012'
http://phys.org/news/2012-05-asteroid-collision-spawned-vesta-family.html

Dawn Reveals Asteroid Vesta's Role in Solar System History
SpaceRef, May 12, 2012,
http://www.spaceref.com/news/viewpr.html?pid=37013

Best wishes,

Paul H.