Apr 2014
03: General
Meeting: 7:30 pm in our regular meeting room
17: Board
Meeting: 7:30 pm @ the Marin’s home. (Check your roster for the address)
18: New
Castle Elementary Open House Fair: 4:30 pm to 6:00 pm. See Maxine D. for
details.
20: Easter
Sunday: Here Comes Peter Cottontail!
26: Science Fair @ Paramount Ranch &
School Spring Fair @ Our Community School: See Article
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Del Air General Meeting: Thursday Apr 03, 2014
7:30 pm in our regular
meeting room at:
Northridge
United Methodist Church - 9650 Reseda Blvd, Northridge, CA 91324
Guests
Are Always Welcome At Our Meetings & Events.
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April 2014 Program:
“Basic Mechanisms of Agate and Jasper Formation”
By: Donald Kasper
What
a great opportunity to have Donald Kasper, a knowledgeable and talented author
of 18 books, present “Basic Mechanisms of Agate and Jasper Formation” at the
Del-Air Rockhounds Club April 2014 general meeting. He will describe set conditions that
constrain how these silica rocks form and how they are related to volcanic
systems. Some of the findings using infrared spectroscopy to identify
agate structures and inclusions are discussed, as well as the composition of
some commonly sold agates. The goal is to show that agates and jaspers do
not form from weathering, but instead form in specific geologic systems that we
can search successfully ourselves in the public lands of the Southwest.
Donald’s book on infrared identification of the major agates, jaspers, opals,
and geode structures of the world will be shown. His latest book
detailing a study of the California coastal agates, which are influenced
strongly by marine conditions, will be shown for the first time. Donald will
take you on a high-level, basic tour of how some of these complex structures
form as he continues on his theory of how water affects these silica systems
which produce the agates that we collect. You may also bring some
specimens for Donald to identify! Please
visit Donald’s website at www.DonaldKasper.com.
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“Something” of the Month
For April 2014, Club
Member Bob Dearborn Asks:
What is Sagenite?
Find out more at our April meeting and please remember
to bring any sagenite specimens you may have and share with the group. There
will be a color handout for those of you that have been collecting these info
sheets over the past few years
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Two Del Air Events in One Day!
We will be hosting education booths
at both the Santa Monica Mountains Science Fair at the Paramount Ranch as well
as at Our Community Charter School on:
SaturdayApril
26, 2014
Set-up times, details and directions
will be sent out to all members via an e-mail blast as we get a little closer
to the event date. Please see Maxine Dearborn or any board member to volunteer
to help out for a few hours. No experience is necessary but fun and
gratification is guaranteed.
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Also
coming up in early May...
Lorne St Elementary School PTA Spring Festival
17440 Lorne Street, Northridge, CA
91324
Saturday May 3, 2014 11:00 am to 4:00 pm
Set
up will begin at 10:00 am. Again, we ask all members, especially those of you
that have not yet volunteered to work one of these events, to step forward and
advise Maxine Dearborn that you will be able to help out. It is a boatload of
fun and you will not be disappointed that you volunteered.
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