10:01 Jul 25, 2011 

Indeed it is a permanent anchor, and I think you are right! Thank you so much for helping!

09:55 Jul 25, 2011 

Thanks for the video, Tina. So, it's about a permanent anchor, as opposed to a ship's anchor! I think that the term you are looking for is probably "deep screw anchor".

09:46 Jul 25, 2011 

Hi Theodoros, it is about a technical specifications' sheet of a marine anchor, so it is actually both geologial and maritime content. There are also some values below the text I've given, referring to D (in mm), required P (in m) and current P (in m). Unfortunately, I cannot copy and paste the diagram, which would explain better what I am talking about, but you can look at this video to see how it works. Thnks for helping! http://www.youtube.com/watch?v=ulQNWPvlmdw

09:24 Jul 25, 2011 

Hi there, Tina. First of all, this text seems to be of geological content and not maritime. At first I thought it might be referring to the blades of a ship's propeller, "hoja" meaning a leaf or a blade (as in hoja de cuchillo), but when I read the context, I was convinced it refers to a "deep" geological probe in the shape of a screw. Such screws are being used for instance when drilling for water or oil. If you can confirm it is indeed a geological tool, I will come up with a suitable answer. Hope this helps!