<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-09-20T00:36:01Z</responseDate><request verb="GetRecord" identifier="oai:dspace.mit.edu:1721.1/114351" metadataPrefix="dim">https://dspace.mit.edu/server/oai/request</request><GetRecord><record><header><identifier>oai:dspace.mit.edu:1721.1/114351</identifier><datestamp>2022-01-13T07:53:59Z</datestamp><setSpec>com_1721.1_7582</setSpec><setSpec>com_1721.1_7581</setSpec><setSpec>col_1721.1_131024</setSpec></header><metadata><dim:dim xmlns:dim="http://www.dspace.org/xmlns/dspace/dim" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.dspace.org/xmlns/dspace/dim http://www.dspace.org/schema/dim.xsd">
   <dim:field mdschema="dc" element="contributor" qualifier="advisor" lang="en_US">Maria Zuber.</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="author" lang="en_US">Clark, Madeline E</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="other" lang="en_US">Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences.</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="department">Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences</dim:field>
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   <dim:field mdschema="dc" element="date" qualifier="accessioned">2018-03-27T14:18:43Z</dim:field>
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   <dim:field mdschema="dc" element="date" qualifier="copyright" lang="en_US">2012</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="issued" lang="en_US">2012</dim:field>
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   <dim:field mdschema="dc" element="identifier" qualifier="oclc" lang="en_US">1028978951</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Thesis: S.B., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2012.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Cataloged from PDF version of thesis.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Includes bibliographical references (page 33).</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="abstract" lang="en_US">Using altimetry data from the Lunar Orbiter Laser Altimeter (LOLA), the depths and diameters of 1429 simple craters in six different lunar maria units were measured, The analysis utilized a Graphical User Interface that was developed to access the LOLA data base and measure crater depth and diameter.The craters were compared to a published trend of depth/diameter relationships for fresh craters by Pike. By and large, the measured craters were shallower than the fresh crater trend. The pattern of shallowing did not correlate with the age of maria units, indicating a complex pattern of basin degradation.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="statementofresponsibility" lang="en_US">by Madeline E. Clark.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="degree" lang="en_US">S.B.</dim:field>
   <dim:field mdschema="dc" element="format" qualifier="extent" lang="en_US">33 pages</dim:field>
   <dim:field mdschema="dc" element="language" qualifier="iso" lang="en_US">eng</dim:field>
   <dim:field mdschema="dc" element="publisher" lang="en_US">Massachusetts Institute of Technology</dim:field>
   <dim:field mdschema="dc" element="rights" lang="en_US">MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission.</dim:field>
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   <dim:field mdschema="dc" element="subject" lang="en_US">Earth, Atmospheric, and Planetary Sciences.</dim:field>
   <dim:field mdschema="dc" element="title" lang="en_US">Investigation of the depth and diameter of simple craters in the lunar mare</dim:field>
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   	&lt;Title>Investigation of the depth and diameter of simple craters in the lunar mare&lt;/Title>
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   	&lt;PublicationDate>2012&lt;/PublicationDate>
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        	&lt;DisplayName>Clark, Madeline E&lt;/DisplayName>
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    &lt;Keyword>Earth, Atmospheric, and Planetary Sciences.&lt;/Keyword>
   	&lt;Abstract>Using altimetry data from the Lunar Orbiter Laser Altimeter (LOLA), the depths and diameters of 1429 simple craters in six different lunar maria units were measured, The analysis utilized a Graphical User Interface that was developed to access the LOLA data base and measure crater depth and diameter.The craters were compared to a published trend of depth/diameter relationships for fresh craters by Pike. By and large, the measured craters were shallower than the fresh crater trend. The pattern of shallowing did not correlate with the age of maria units, indicating a complex pattern of basin degradation.&lt;/Abstract>
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