Charlotte Schreiber was my teacher, Master’s advisor, Post-Doc supervisor, and friend for more than 40 years.She has made parts of my life more joyous than I could have believed and has exasperated me at times.Through it all, it has been my honor and privilege to know and work with her.
My first encounter with Charlotte was in 1978 when she lectured on sedimentary rocks to a Geology 1 class in place of Allan Ludman.I don’t remember much about the lecture except for the continual mention of wackes, which made it hard for me to keep a straight face.I started to get to know Charlotte better when I worked for her husband Ed preparing samples for physical properties testing.I would work all Friday in Ed’s lab at Lamont-Doherty and then, at Charlotte’s insistence, go to the Friday afternoon seminar, which she said counted as work time.Imagine, being paid to sit and listen to scientists present the results of their research.
Very often, the seminar was prologue to dinner at Ed and Charlotte’s house in Piermont.Charlotte is a great cook and has, as I’m sure everyone knows, the widest range of friends, most of whom are world class geologists (I’m an exception – a non-world class geologist).Those Friday nights in Piermont were magical to me.I never dreamed that I would meet and talk with people such as John Van Couvering, Larry Sloss, John Dewey [who became my D.Phil. supervisor], Walter Pitman, and far too many others to name.
Somewhere along the way she asked if I would like to be her graduate student and do a project on evaporates in Italy.Who could say no to a free trip to Italy? But first I had to get through her Sedimentary Petrology class – and that’s when I started to really get to know Charlotte.I’ll never forget the first class in Sed Pet, I asked what I considered to be a relatively simple question to help me clarify a point she’d made -- and her answer took 10 minutes.About half way through her answer it seemed as if she was going on and on about a whole range of things and never getting to what I had asked her about.Luckily, I did not tune out entirely because somehow in the last minute of her answer [and of the class] Charlotte pulled it all together, answered my question directly, and then pointed out how my question related to the rest of her lecture.That is when I learned to pay careful attention to what she said, no matter how off-track it seemed.
I spent 2 field seasons with Charlotte, Ed, and others in Italy, mostly in the Dolomites but with 2 weeks in Sicily the first season and about a week in the Apennines the second season.The first season was great because much of what we expected to find was very different from what we actually found.However, the second season was incredible for several reasons.
It actually started when Charlotte arranged for me to spend 10 or 12 days in London at Imperial College with Doug Shearman learning as much as I could about evaporites and carbonates.Doug was fantastic and made me work out things that seemingly had no relationship to evaporites (e.g. how serpentinite forms) until he pointed out that hydration and dehydration in ophiolites is similar to phenomena in gypsum.Putting people together and watching how well they interact and help each other is one of Charlotte’s great strengths.
After leaving London [and my departure with Carl Nelson and our race to check in for our flight is a story I’ll leave for him to tell], I went to Paris to meet Ed Schreiber and he, Carl, and I drove 2 cars to Italy by way of Beaune, Zurich, Lichtenstein, and Austria.Charlotte and Susie [one of her daughters] met us about a week [and many bottles of wine] later.
We lived in a rented house Agordo at the foot of the Dolomites [600 meters above sea level] and spent about 8 weeks in the field.Charlotte’s thesis projects required lots of field work and sample collecting.She also gave us lots of other things to do in the field, such as telling her to be careful not to fall into one the many holes near an important outcrop and to be careful crossing a stream.So, of course, she fell into one of the holes and into the stream – meaning that Carl and I had to go get her out without getting thesis credit for it.
During that summer, we went to the Apennines to see primary evaporite facies – Charlotte led us up to a section of the Vena del Gesso through the worst thorns I’ve ever encountered.Of course, as Charlotte explained while Carl and I wiped the blood from our arms, it was clear 3½ months earlier for the IAS field trip she was on.But at least we got to eat in a 3-star Michelin restaurant near Imola afterward.
I spent the following field season as Charlotte’s field assistant on Ellesmere Island in the Canadian Arctic.It was totally different from Italy – no restaurants, sleeping in tents, no contact with anyone except by radio twice a day [and sunspot interference prevented that for about 4 days at one point], and 24 hours of daylight.To Charlotte, twenty-four hours of daylight means 24 hours that you can work.Right!!!
After finishing my Master’s under Charlotte’s supervision I went on to do a doctorate in the U.K. on the tectonics of the Western Mediterranean and then returned to New York to work as her Post-Doc on evaporites as source rocks for 2 years.Most of my time as a Post-Doc was spent doing lab work at the University of Oklahoma, where she had made contact with [and sent me to work with] 2 of the best organic geochemists in the world [Paul Philp and Mike Engler].
From evaporite petrology and sedimentology, to regional tectonics, to organic geochemistry involved some big jumps for me, but for Charlotte it didn’t seem at all unusual.Of course, these were not the only things Charlotte was involved in studying with her students and colleagues.Ask Steve Karner who worked [if I remember correctly] on sandstone diagenesis or Lidia Lonergan [a John Dewey student] who worked on the evolution of the Betic Cordillera.
And those were two of Charlotte’s great strengths – an insatiable curiosity about a range of different geologic topics and the ability to work with and to put together people who can work on wide ranging topics.
Of course, Charlotte was more than just a geologist or a geological mentor.She was first and foremost a great friend.Whether it was Inviting students who were far from home or who had nowhere else to go to an “orphan’s” Thanksgiving at her house, or acting as an unofficial godmother to my kids and to her niece Jackie and her kids, or any of the myriad other acts of friendship and kindness that are too numerous to mention--that was what made Charlotte very special to me and to many others.
Marc Helman