It came to my notice in the tropics and sub-tropics where ultramafic rocks exist on some islands, weathered materials like serpentine are washed into rivers etc leading them into mangrove swamps. One in particular is New Caledonia. Pls see link http://newcaledoniaplants.com/plant-catalog/mangrove-plants/ <http://newcaledoniaplants.com/plant-catalog/mangrove-plants/> The mangroves are so healthy possibly the result of these nutrients and other chemicals present in the waters. However I also note there is extensive mining on the island and mangroves threatened by toxic chemicals. Another problem is the presence of chrysotile asbestos in the ultramafic rocks is not good for humans. I am interested to study the reaction of mangroves to olivine and other forms of surpentine like lizardite. Much of the coasts of countries in the tropics and sub-tropics can be further protected by natural means if these plants can be grown near coastlines to protect them against erosion, sea-level rises and tsunamis. In addition we may see further CO2 uptake by these forests by reducing the acidification in the surrounding waters.
Parminder Singh Malaysia On Sun, Oct 5, 2014 at 9:45 AM, Russell Seitz <russellse...@gmail.com> wrote: > Perhaps more to the point,temperate zone serpentinization and tropical > weathering of olivine rich rocks like basalts and dunites is proceeding > constantly over large inland areas, and whereever such rocks are eroded , > comminution in rivers and streams gives rise to olivine particles even > smaller than those you have discussed . > > On Tuesday, September 30, 2014 2:28:29 PM UTC-4, andrewjlockley wrote: >> >> Hi >> >> The proposal for olivine weathering on beaches seems to pass a common >> sense test. >> >> However, there's been a lack of detailed discussion about the occurrence >> and function of natural olivine beaches, as far as I'm aware. >> >> There are a lot of beaches in the world. Olivine is pretty common. How >> much of a sink is natural beach chemical and mechanical weathering of >> olivine? >> >> It should be easy to find at least one location where there's massive >> quantities of olivine sand, and take detailed measurements on the carbon >> sink. >> >> I know there's at least one such beach in the literature, but I can't >> recall discussions of others, nor detailed quantitative research on erosion >> and sequestration rates at this site >> >> Can someone enlighten me as to why this has seemingly been overlooked for >> detailed study? >> >> A >> > -- > You received this message because you are subscribed to a topic in the > Google Groups "geoengineering" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/geoengineering/a0MAljS4pgs/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > geoengineering+unsubscr...@googlegroups.com. > > To post to this group, send email to geoengineering@googlegroups.com. > Visit this group at http://groups.google.com/group/geoengineering. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to geoengineering+unsubscr...@googlegroups.com. To post to this group, send email to geoengineering@googlegroups.com. Visit this group at http://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
