Pictures from the sea floor

by Kevin Köser Today is already Friday, the 21st of August and the cruise is about to reach its end. Although the last 4 weeks have been quite a while, when you are busy, time flies by quickly and on Sunday we already have to steam back to Guayaquil. The ship and the gear is […]

How it all began

By Gerd Schriever Many different mineral resources can be found on the deep sea floor. Beside manganese nodules, manganese crusts, massive sulphides and rare earth elements are of commercial interest. The first manganese nodules were found in 1872 during the English “Challenger” expedition in the Atlantic Ocean but were quickly forgotten. During the late 1960s/early […]

My piece of cake

By Dr. Clara Rodrigues and Dr. Patricia Esquete Garrote, Universidade de Aveiro, Portugal The Box-corer is one of the stars of this DISCOL revisited cruise. This stainless steel sampling box has been used since the 1980s to determine the fauna composition at the abyssal floor. The surface area of the box is a quarter of […]

The veteran’s tales

By Gerd Schriever Today it is my turn to write something about our cruise SO 242 leg 1 – DISCOL – Revisited. My name is Gerd Schriever and I am the “veteran” mentioned in an earlier blog entry. “Veteran” means that I am probably not just the oldest person but also the only one on […]

First impressions from SONNE cruise 242/1

On the way to the river mouth of the Rio Guayas. Photo: Evangelos Alevizos

Extremely excited about my first ever experience on a research vessel. It’s been a few days now since we arrived in the tropical Ecuador. We were lucky to have a day to acclimate before heading off to the ship. Monday morning we were driven through Guayaquil passing lots of colorful houses and finally reached the […]

SO242 – Here we are again

RV SONNE in Guayaquil (Ecuador). Photo: Jens Greinert

‘Here we are again‘ was a phrase that I heard several times yesterday when we boarded RV SONNE in Guayaquil (Ecuador) in the morning after being picked up by the agent exactly on time. We are about to start with SONNE 242-1, the first of two legs to the DISCOL area during which we will […]

SO239: The crusher

At 4300 m depth the manipulator of ROV KIEL 6000 places a Mn nodule into the crusher. Photo: ROV KIEL 6000, GEOMAR

Mining Mn-nodules is certainly a debatable topic. Whether it will happen depends on metal market prices, governmental and industry interests, environmental & societal acceptance but also on technological feasibility. In this respect, one of the various unknows are the mechanical properties of Mn-nodules, which are of great importance because they determine how the nodules can […]

SO239: Old fashioned explorers

Bathymetric map created with the deep-water multibeam echosounder system of RV SONNE

“Time flies when you have fun”, this might be even truer when you have fun while working with the most modern research vessel of Europe (the world?) equipped with the best hydroacoustic systems available at the moment. I am a marine geologist and for my work I need to know the morphology of the sea […]

SO239: Pacific, 27 March 2015, RV SONNE: A Mosaic of the seafloor

One of 44.000 seafloor images taken with the AUV ABYSS.

44,000 images: That is the result of one single dive with the camera-equipped Autonomous Underwater Vehicle called “Abyss”. During the current Cruise of FS Sonne, six of those camera dives are planned, but, time permitting, there will hopefully be even more. The brand new high-resolution camera and strong LED lighting setup in “Abyss” allow acquiring […]

SO239: Deploying the DOS Lander (11° 51’ N, 117° 0’ W)

Rattail fish in front of the DOS Lander / Grenadierfische vor dem DOS-Lander: Photo: DOS-Lander

(Deutsche Version s.u.) After eight days of transit we reached our first station in the German licensing area. Shortly after our arrival the DOS Lander (Deep Sea Observatory System) was deployed for its first of two missions.  The possibility to use different sets of measurement devices makes the DOS Lander a flexible platform for longer […]