The Iberian plate came into existence during the Cadomian Orogeny of the late Neoproterozoic, about 650-550 Ma, on the margin of the Gondwana continent, involving the collisions and accretion of the island arcs of the Central Iberian Plate, Ossa-Morena Plate, South Portuguese Plate.
On 15 January 1977, Flight 618 operated by Vickers Viscount SE-FOZ crashed at Kälvesta on approach to Bromma Airport, Stockholm due to ice accretion on the tailplane leading to a loss of control.
MarchFIRST company was formed on March 1, 2000 by the merger of Whittman-Hart, a respected systems integrator employing thousands of consultants in the US, Canada, and Europe, and USWeb/CKS, a pioneering interactive services company formed during the 1990s by accretion of numerous local or regional Internet and Web design consultancies.
During the 20th century many theories were proposed including the planetesimal theory of Thomas Chamberlin and Forest Moulton (1901), tidal model of Jeans (1917), accretion model of Otto Schmidt (1944), protoplanet theory of William McCrea (1960) and finally capture theory of Michael Woolfson.
Current projects aim to investigate the nature of mass-loss via stellar winds in a broad range of astrophysical settings, including: the structure of fast outflows from the central stars of planetary nebulae, mass-loss, clumping and the origin of structure in the winds of luminous OB stars, accretion-disc outflows in cataclysmic variables and, the origin and nature of mass outflows from young classical T Tauri stars.
Measurements of such paleomagnetic fields in the Oregon Coast Range show rotations of 46 to 75°, all of it following the presumed accretion to the continent (alternately, formation) of the Siletz terrane at about 50 Ma.
crustal thickening occurred that was associated with accretion of an intra-oceanic arc terrane and subsequent regional metamorphic activity characterized by the growth of retrograde, upper amphibolite-facies assemblages that define a clockwise, decompressive P–T path (pressure-temperature) path.