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gum

gum . An organic, viscid juice extracted from, or exuded by, certain trees and plants. It hardens in the air and is soluble in water.

Seven New Awardees of the Celebrate 100 Grants

Mars on the Mall

With the start of 2019, AGU’s Centennial is now in full swing. And what better way to celebrate than by having you, our members, create and plan events across the globe. That is why I am so pleased to announce the next set of Celebrate 100 Grants that enable our members and partners to share the wonder and excitement of Earth and space science and how it benefits communities and society.

intergrade

intergrade . (a) A taxonomic class at the subgroup level of soil taxonomy having properties typical of the great group of which it is a member and that are characteristic of some class in a higher category (any order, suborder, or great group) and indicates a transition to that kind of soil. (b) A soil that is amember of one such subgroup. See also: extragrade.

intergrade

intergrade . (a) A taxonomic class at the subgroup level of soil taxonomy having properties typical of the great group of which it is a member and that are characteristic of some class in a higher category (any order, suborder, or great group) and indicates a transition to that kind of soil. (b) A soil that is amember of one such subgroup. See also: extragrade.

Why the ‘Child of Krakatau’ volcano is still dangerous – a volcanologist explains

Thomas Giachetti (University of Oregon) explains his research into the risk posed by Anak Krakatau, published in the Journal of the Geological Society in January 2012, and how it relates to what happened in December 2018. Continue reading

rosette [paleont]

rosette [paleont] . (a) A delicate calcareous plate formed of metamorphosed basal plates, centrally located within the radial pentagon in some free-swimming crinoids. (b) The group of five petal-shaped ambulacra on certain echinoids. (c) A cluster of parts in circular form; e.g. a discoaster. (d) A flower-shaped button within a hexagonal pore frame in a radiolarian skeleton. (e) The cellular part of a septula in cheilostome and ctenostome bryozoans.

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