![origin 8 rims origin 8 rims](https://www.sefiles.net/images/library/large/origin8-bolt-alloy-road-disc-wheelset-348138-11.jpg)
Photochemistry of the atmosphere of Titan: comparison between model and observations. Transient surface liquid in Titan’s polar regions from Cassini. An asymmetric distribution of lakes on Titan as a possible consequence of orbital forcing. Hydrocarbon lakes on Titan: distribution and interaction with a porous regolith. Hence, we suggest that raised-rim basins are evidence for one or more warming events terminating a nitrogen-dominated cold episode on Titan.
![origin 8 rims origin 8 rims](https://static.modernbike.com/144/thumb_2126307657_20210105125048.jpg)
We calculate that the phase transition of liquid nitrogen in the near subsurface during a warming event can generate explosions sufficient to form the basins. We find that the morphology of the raised-rim basins is analogous to that of explosion craters from magma–water interaction on Earth and therefore propose that these basins are from near-surface vapour explosions, rather than karstic. Here we analyse the morphology of the small lake basins that feature raised rims to elucidate their origin, using delay-Doppler processed altimetric and bathymetric data acquired during the last close flyby of Titan by the Cassini spacecraft. The modern-day small lake basins with sharp edges have been suggested to originate from dissolution processes, due to their morphological similarity to terrestrial karstic lakes. Lakes of liquid nitrogen may have existed during the epochs of Titan’s past in which methane was photochemically depleted, leaving a nearly pure molecular nitrogen atmosphere and, thus, far colder temperatures. For any item(s) that is returned or declined a 15% restocking fee will be charged along with the shipping / handling fees.The Cassini mission discovered lakes and seas comprising mostly methane in the polar regions of Titan. If a cancellation must happen a 15% restocking fee will be charged. You may alter an order with in 24 hours, providing the order has not been built. Refund Policy: Once an order has been placed, no Refunds or Cancellations are allowed.
![origin 8 rims origin 8 rims](https://ph-live-05.slatic.net/p/b9c40b5378d712d44f37ab07d5718036.jpg)
Order Modification Policy: If you are exchanging your product for a different color there may be a 10% order modification fee. Buyer is responsible for shipping back to seller. Product must be in new condition and in the original packaging (spokes do not qualify for this return policy). Please note that if the exchange is for a component of one of our hand built wheels there may be a 10% fee associated with the exchange. Return Policy: If you are not completely satisfied with our product you may exchange it for any product we sell within 7 days of receiving your purchase (there will be no refund issued for a difference if a lesser item is purchased). Prowheelbuilder will not alter the customs value. International Shipping Policies: Duties and Taxes are the responsibility of the purchaser. If you request no signature, Prowheelbuilder takes no responsibility for any stolen product. All packages are insured thru the package handler by Prowheelbuilder. However we will be happy to help resolve these matters through the package handler. If there is a problem such as back ordered product / unavailable we will do our best to contact you as soon as possible.ĭomestic Shipping Policies: Prowheelbuilder is not responsible for damage that may occur during shipping. This date is independent of the actual shipping time. Wheel orders should ship within 20 business days of your order date. Shipping Time Policy: Stock products will ship within 7 working days of order, based on availability. Email at with any questions regarding your orders ETA. Covid Disruptions: Due to COVID 19 our supply chains have been disrupted and certain brands may add several weeks to our normal lead time.