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Published online by Cambridge University Press: 13 May 2010
Lade and its environs
One of the items on my observing programme for 1989 Feb. 12 was the examination of the enclosure designated Lade B which is situated between Godin A and the flooded Lade. It had been noticed on previous occasions that this formation bore a resemblance to a Wargentin-type structure in being filled, partially at least, with lava and as such deserving of closer study. However, lighting was insufficiently advanced on Lade B at commencement and my attention was drawn to the considerable amount of detail displayed on the interior of Lade itself – unusual in a crater in so ruinous a condition, having suffered from the effects of inundation from the south. Much finer detail was glimpsed during moments of almost perfect definition but this lay beyond the limits of resolution for a 10″ glass and no attempt was made to portray this in the drawing.
Later on, the eastern environs of Lade were observed – the most interesting feature here being a shallow valley-rille or graben running for a distance of over 50 miles in a NW–SE direction.
Beginning in the mountain ridges east of Godin A as a broad groove with raised banks, it was interrupted in its course southwards by an irregular mountain group from which it emerged much narrower and duskier along a ‘cutting’, to be blocked yet again by two hills at which it appeared to terminate, for it could be traced no further.
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