{"id":116,"date":"2023-11-27T09:00:18","date_gmt":"2023-11-27T09:00:18","guid":{"rendered":"https:\/\/www.oceanblogs.org\/expedition-m195-cyrtaci\/?p=116"},"modified":"2023-11-28T17:59:26","modified_gmt":"2023-11-28T17:59:26","slug":"what-is-a-schlauchkern","status":"publish","type":"post","link":"https:\/\/www.oceanblogs.org\/expedition-m195-cyrtaci\/2023\/11\/27\/what-is-a-schlauchkern\/","title":{"rendered":"WHAT IS A “SCHLAUCHKERN”?"},"content":{"rendered":"\n

The \u201cschlauchkern\u201d is a type of coring method that we have been using a lot on M195. In essence, it is a test core to get a view of the sediments to see if we want to collect the material. The process begins with geophysical imaging of the sediments below the meeting point of the lowermost water column and the uppermost sediment layer. Once we have decided that the area looks promising for our studies, we collect a gravity core in a plastic bag liner, allowing us to preview the mud. The gravity core is a long steel pipe with weights on the top that drives into the sediment, thereby collecting sediment layer by sediment layer. The sediment layers enter a liner bag within the steel tube, which is then pulled up to, and laid out on, the deck of the ship, cut in half to expose the sediments. This \u201csneak peek\u201d allows the scientists on board to see whether their interpretation of the imaging was correct, and the sediments are suitable for the various scientific studies that are planned. The schlauchkern is then returned to the sea (without the bag!). Because a schlauchkern does not need to be labelled and collected for later study at the end of examination, the schlauchkern approach is quick method of checking the sediments. If an interesting sedimentary sequence is recovered via a schlauchkern, we go ahead and place either a gravity core or a box core. Once a decision is made, the CYRTACI team starts the fun game of placing bids on the actual length of the final core.<\/p>\n\n\n\n

Written by Melissa Berke (University of Notre Dame, USA). It is Melissa\u2019s second voyage on the German research vessel METEOR, and while she does not (yet) speak German, she does have a favourite word: der \u201cSchlauchkern\u201d.<\/p>\n\n\n\n

<\/p>\n\n\n\n

WAS IST EIN SCHLAUCHKERN?<\/strong><\/h1>\n\n\n\n

Der “Schlauchkern” ist eine Art von Kernbohrung, die wir auf M195 h\u00e4ufig anwenden. Im Wesentlichen handelt es sich dabei um einen Probekern, mit dem wir einen ersten Einblick in die Sedimente am Meeresboden erhalten wollen, um zu sehen, ob wir weiteres Material von der gleichen Stelle gewinnen wollen. Der Arbeitsablauf rund um einen Schlauchkern beginnt mit der geophysikalischen Prospektion der Sedimente am Meeresboden. Hat sich eine erfolgversprechende Lokation identifizieren lassen, nehmen wir einen Schwerelotkern in einem Plastikschlauch, der uns einen ersten Einblick in die Sedimente erm\u00f6glicht. Der Schwerelotkern ist ein langes, Rohr mit einem Bleigewicht am Kopf, welches durch sein Eigengewicht in das Sediment getrieben wird. Die im Plastikschlauch gesammelten Sedimente werden zusammen mit dem Rohr an Bord zur\u00fcckgeholt. Dort wird der Schlauch in zwei H\u00e4lften aufgeschnitten und sein Inhalt auf dem Schiffsdeck ausgelegt. Auf diese Weise k\u00f6nnen die Wissenschaftler an Bord schnell feststellen, ob ihre geophysikalische Interpretation des Untergrundes richtig war und ob sich die Sedimentabfolge f\u00fcr die geplanten Untersuchungen eignet. Der Schlauchkern wird nach der Inspektion ohne Beschriftung und Beprobung wieder ins Meer zur\u00fcckgeworfen (ohne Plastikschlauch!). Wenn ein Schlauchkern ergibt, dass eine interessante Sedimentabfolge am Meeresboden vorhanden ist, setzen wir als n\u00e4chstes entweder ein Schwerelot oder ein Kastenlot ein. Sobald diese Entscheidung getroffen ist, macht sich das CYRTACI-Team einen Spa\u00df daraus, Wetten auf die tats\u00e4chliche L\u00e4nge des endg\u00fcltigen Kerns abzugeben.<\/p>\n\n\n\n

Geschrieben von Melissa Berke (University of Notre Dame, USA). Melissa ist zum zweiten Mal auf der METEOR unterwegs und obwohl sie (noch) kein Deutsch spricht, hat sie ein doch ein deutsches Lieblingswort: “Schlauchkern”.<\/p>\n\n\n\n

\u03a4\u0399 \u0395\u0399\u039d\u0391\u0399 \u0395\u039d\u0391 \u201cSCHLAUCHKERN\u201c;<\/strong><\/h1>\n\n\n\n

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\u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b9\u03c2 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03b6\u03cc\u03bc\u03b5\u03bd\u03b5\u03c2 \u03b5\u03c0\u03b9\u03c3\u03c4\u03b7\u03bc\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2 \u03bc\u03b5\u03bb\u03ad\u03c4\u03b5\u03c2. \u03a4\u03bf \u03c0\u03b5\u03c1\u03b9\u03b5\u03c7\u03cc\u03bc\u03b5\u03bd\u03bf \u03b1\u03c5\u03c4\u03ae\u03c2 \u03c4\u03b7\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c0\u03c5\u03c1\u03b7\u03bd\u03bf\u03bb\u03b7\u03c8\u03af\u03b1\u03c2 (Schlauchkern), \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ad\u03c6\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03b8\u03ac\u03bb\u03b1\u03c3\u03c3\u03b1 (\u03c7\u03c9\u03c1\u03af\u03c2 \u03c6\u03c5\u03c3\u03b9\u03ba\u03ac \u03c4\u03b7\u03bd \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae \u03b4\u03b9\u03b1\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1). \u039a\u03b1\u03b8\u03ce\u03c2 \u03b1\u03c5\u03c4\u03ae \u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae \u03c0\u03c5\u03c1\u03b7\u03bd\u03bf\u03bb\u03b7\u03c8\u03af\u03b1 \u03b4\u03b5 \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03bd\u03b1 \u03c3\u03c5\u03bb\u03bb\u03b5\u03c7\u03b8\u03b5\u03af \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b1\u03c1\u03b9\u03b8\u03bc\u03b7\u03b8\u03b5\u03af \u03b3\u03b9\u03b1 \u03bc\u03b5\u03bb\u03bb\u03bf\u03bd\u03c4\u03b9\u03ba\u03ae \u03bc\u03b5\u03bb\u03ad\u03c4\u03b7 \u03c3\u03c4\u03bf \u03c4\u03ad\u03bb\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03b5\u03be\u03ad\u03c4\u03b1\u03c3\u03ae\u03c2 \u03c4\u03b7\u03c2, \u03b7 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03c4\u03bf\u03c5 Schlacuhkern \u03c0\u03c1\u03bf\u03c4\u03b9\u03bc\u03ac\u03c4\u03b1\u03b9 \u03c9\u03c2 \u03bc\u03b9\u03b1 \u03b3\u03c1\u03ae\u03b3\u03bf\u03c1\u03b7 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03c0\u03c1\u03ce\u03b9\u03bc\u03b7\u03c2 \u03b5\u03be\u03ad\u03c4\u03b1\u03c3\u03b7\u03c2 \u03c4\u03c9\u03bd \u03b9\u03b6\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd. \u0395\u03ac\u03bd \u03b5\u03bd\u03c4\u03bf\u03c0\u03b9\u03c3\u03c4\u03b5\u03af \u03ad\u03c4\u03c3\u03b9 \u03bc\u03b9\u03b1 \u03b5\u03bd\u03b4\u03b9\u03b1\u03c6\u03ad\u03c1\u03bf\u03c5\u03c3\u03b1 \u03c3\u03c4\u03c1\u03c9\u03bc\u03b1\u03c4\u03bf\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03ae \u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03af\u03b1, \u03c3\u03c5\u03bd\u03b5\u03c7\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 \u03b5\u03af\u03c4\u03b5 \u03bc\u03b5 \u03ad\u03bd\u03b1\u03bd \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf \u03c0\u03c5\u03c1\u03ae\u03bd\u03b1 \u03b2\u03b1\u03c1\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2 (gravity core) \u03b5\u03af\u03c4\u03b5 \u03bc\u03b5 \u03ad\u03bd\u03b1\u03bd \u03ba\u03b9\u03b2\u03c9\u03c4\u03b9\u03cc\u03c3\u03c7\u03b7\u03bc\u03bf \u03c0\u03c5\u03c1\u03ae\u03bd\u03b1 (Kasten Core). \u039c\u03cc\u03bb\u03b9\u03c2 \u03bb\u03b7\u03c6\u03b8\u03b5\u03af \u03b7 \u03b1\u03c0\u03cc\u03c6\u03b1\u03c3\u03b7, \u03b7 \u03bf\u03bc\u03ac\u03b4\u03b1 \u03c4\u03bf\u03c5 CYRTACI \u03be\u03b5\u03ba\u03b9\u03bd\u03ac\u03b5\u03b9 \u03ad\u03bd\u03b1 \u03c0\u03b1\u03b9\u03c7\u03bd\u03af\u03b4\u03b9 \u03cc\u03c0\u03bf\u03c5 \u03c3\u03c4\u03bf\u03b9\u03c7\u03b7\u03bc\u03b1\u03c4\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 \u03b3\u03b9\u03b1 \u03c4\u03bf \u03c0\u03cc\u03c3\u03bf \u03b8\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03c4\u03b5\u03bb\u03b9\u03ba\u03cc \u03bc\u03ae\u03ba\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03ba\u03b1\u03bd\u03bf\u03bd\u03b9\u03ba\u03bf\u03cd \u03c0\u03c5\u03c1\u03ae\u03bd\u03b1.<\/p>\n\n\n\n

\u039a\u03b5\u03af\u03bc\u03b5\u03bd\u03bf: Melissa Burke (\u03a0\u03b1\u03bd\u03b5\u03c0\u03b9\u03c3\u03c4\u03ae\u03bc\u03b9\u03bf Notre Dame, H\u03a0\u0391). \u03a0\u03c1\u03cc\u03ba\u03b5\u03b9\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03bf \u03b4\u03b5\u03cd\u03c4\u03b5\u03c1\u03bf \u03c4\u03b1\u03be\u03af\u03b4\u03b9 \u03c4\u03b7\u03c2 Melissa \u03bc\u03b5 \u03c4\u03bf \u03b3\u03b5\u03c1\u03bc\u03b1\u03bd\u03b9\u03ba\u03cc \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03b9\u03ba\u03cc \u03c0\u03bb\u03bf\u03af\u03bf METEOR, \u03ba\u03b1\u03b9 \u03b1\u03bd \u03ba\u03b1\u03b9 \u03b4\u03b5 \u03bc\u03b9\u03bb\u03ac\u03b5\u03b9 (\u03b1\u03ba\u03cc\u03bc\u03b1) \u0393\u03b5\u03c1\u03bc\u03b1\u03bd\u03b9\u03ba\u03ac, \u03b7 \u03b1\u03b3\u03b1\u03c0\u03b7\u03bc\u03ad\u03bd\u03b7 \u03c4\u03b7\u03c2 \u03bb\u03ad\u03be\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u201cder Schlauchkern\u201d.<\/p>\n\n\n\n

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Core bids that are placed after a schlauchkern has been taken and before the box or gravity core are placed. <\/sub>
\u201cKernwetten\u201d, die die M195-Wissenschaftler nach der Entnahme eines Schlauchkerns und vor dem Einsatz des Kasten- oder Schwerelots abgegeben werden.<\/sub>
Credit: Eberhard Waldh\u00f6r \/ OceanBlogs<\/sub><\/figcaption><\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n
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Once a schlauchkern is recovered, it is cut open on deck for scientists to measure length, take notes regarding the colour and type of material recovered. <\/sub>
Sobald der Schlauchkern geborgen ist, wird er an Deck gemessen und aufgeschnitten, damit Wissenschaftler Notizen die Zusammensetzung und Farbe des geborgenen Materials beurteilen k\u00f6nnen. <\/sub>
\u03a3\u03c4\u03bf\u03b9\u03c7\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c4\u03b7\u03c2 \u03b5\u03c0\u03b9\u03c3\u03c4\u03b7\u03bc\u03bf\u03bd\u03b9\u03ba\u03ae\u03c2 \u03bf\u03bc\u03ac\u03b4\u03b1\u03c2 \u03bc\u03b5\u03c4\u03ac \u03c4\u03b7\u03bd \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae \u03c0\u03c5\u03c1\u03b7\u03bd\u03bf\u03bb\u03b7\u03c8\u03af\u03b1 (Schlauchkern) \u03ba\u03b1\u03b9 \u03c0\u03c1\u03b9\u03bd \u03b1\u03bd\u03b1\u03c3\u03c5\u03c1\u03b8\u03b5\u03af \u03bf \u03c0\u03c5\u03c1\u03ae\u03bd\u03b1\u03c2 \u03b2\u03b1\u03c1\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ae \u03bf \u03ba\u03b9\u03b2\u03c9\u03c4\u03b9\u03cc\u03c3\u03c7\u03b7\u03bc\u03bf\u03c2 \u03c3\u03c4\u03bf \u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03c1\u03c9\u03bc\u03b1. \u039c\u03cc\u03bb\u03b9\u03c2 \u03b1\u03bd\u03b1\u03c3\u03c5\u03c1\u03b8\u03b5\u03af \u03bf \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc\u03c2 \u03c0\u03c5\u03c1\u03ae\u03bd\u03b1\u03c2 (Schlauchkern), \u03ba\u03cc\u03b2\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b1 \u03b4\u03c5\u03bf \u03b1\u03c0\u03cc \u03c4\u03bf\u03c5\u03c2 \u03b5\u03c0\u03b9\u03c3\u03c4\u03ae\u03bc\u03bf\u03bd\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03bc\u03b5\u03c4\u03c1\u03b7\u03b8\u03b5\u03af \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b3\u03af\u03bd\u03bf\u03c5\u03bd \u03ba\u03ac\u03c0\u03bf\u03b9\u03b5\u03c2 \u03c3\u03b7\u03bc\u03b5\u03b9\u03ce\u03c3\u03b5\u03b9\u03c2\u03c3\u03b5 \u03c3\u03c7\u03ad\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf \u03c7\u03c1\u03ce\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03bf \u03b5\u03af\u03b4\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03c5\u03bb\u03b9\u03ba\u03bf\u03cd \u03c0\u03bf\u03c5 \u03b1\u03bd\u03b1\u03ba\u03c4\u03ae\u03b8\u03b7\u03ba\u03b5.<\/sub>
Credit: Derya G\u00fcrer \/ Maike Glos \/ OceanBlogs<\/sub><\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"

The \u201cschlauchkern\u201d is a type of coring method that we have been using a lot on M195. In essence, it is a test core to get a view of the sediments to see if we want to collect the material. The process begins with geophysical imaging of the sediments below the meeting point of the […]<\/p>\n","protected":false},"author":253,"featured_media":53,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-116","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-at-sea"],"_links":{"self":[{"href":"https:\/\/www.oceanblogs.org\/expedition-m195-cyrtaci\/wp-json\/wp\/v2\/posts\/116","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oceanblogs.org\/expedition-m195-cyrtaci\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.oceanblogs.org\/expedition-m195-cyrtaci\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.oceanblogs.org\/expedition-m195-cyrtaci\/wp-json\/wp\/v2\/users\/253"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oceanblogs.org\/expedition-m195-cyrtaci\/wp-json\/wp\/v2\/comments?post=116"}],"version-history":[{"count":7,"href":"https:\/\/www.oceanblogs.org\/expedition-m195-cyrtaci\/wp-json\/wp\/v2\/posts\/116\/revisions"}],"predecessor-version":[{"id":141,"href":"https:\/\/www.oceanblogs.org\/expedition-m195-cyrtaci\/wp-json\/wp\/v2\/posts\/116\/revisions\/141"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.oceanblogs.org\/expedition-m195-cyrtaci\/wp-json\/wp\/v2\/media\/53"}],"wp:attachment":[{"href":"https:\/\/www.oceanblogs.org\/expedition-m195-cyrtaci\/wp-json\/wp\/v2\/media?parent=116"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.oceanblogs.org\/expedition-m195-cyrtaci\/wp-json\/wp\/v2\/categories?post=116"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.oceanblogs.org\/expedition-m195-cyrtaci\/wp-json\/wp\/v2\/tags?post=116"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}