Thursday, January 29, 2015

Del Air's February 2015 Calendar of Events

Feb 2015 
05: General Meeting: 7:30 pm in our regular meeting room. 
14: Valentine’s Day: Take good care of your sweetheart! 
16: Presidents Day: Remember our past Commanders in Chief!  
19: Board Meeting: 7:30 pm at the Dearborn’s home 
Del Air General Meeting: Thursday Feb 05, 2015  
The meeting begins at 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.
Feb 2015 Program: "The Evolution of Whales"           presented by Keith Krzywiec
This exciting presentation consists of a discussion of the evolution of whales from whale fossil to modern whales. It will followed by an in-depth video of the history of whales. Keith will also build a whale skeleton from his whale fossil collection. There will be a large assortment of whale fossil displays and charts. This is an excellent program for all to enjoy. You are welcome to bring your whale fossils/bones to be identified.                                                                             Emmy Silverman-Program Chairwoman
Many thanks go out to Julie Marin, Emmy Silverman, Leilani Backus, Keri Dearborn, Sharon Fyfe along with Bob & Maxine Dearborn for helping to sew rock bags.  On Jan 8th, the Dearborn home was busy with Julie, Emmy & Maxine at the sewing machines. Leilani was ironing, folding and moving bags to the next sewing machine. Bob was turning the finished bags right side out. Jan. 9th was a rainy Saturday with Maxine and Keri sewing bags until mid-day. Sharon added to the bag count by sewing quite a few at her home. Bob & Maxine finished on Sunday afternoon with a total count of 700 rock bags. Thank You Everyone - Now all we have to do is to fill these 700 bags.
The Del Air Club has been asked to participate in the Chatsworth Park Elementary School Science Night on Friday March 27, 2015 - 5:30 pm to 9:00 pm. We will have an earth science display featuring rocks, minerals and probably some fossils. We may also have an educational game for students to play. We will also be selling rock bags at our booth. Please, if you can help at our booth contact Maxine. It is always a fun time at our booth. Chatsworth Park Elementary is located at: 22005 Devonshire St. Chatsworth, CA (Devonshire St & Topanga Cyn Blvd)
Maxine Dearborn – Education Team
Support our Hobby...Attend a Local Show
February 13 - 22: INDIO, CA
San Gorgonio Mineral & Gem Society, Cabazon
Riverside County Fair & National Date Festival
82-503 Highway 11
Hours: 10 - 10 daily
Contact: Bert Grisham, (915) 849-1674
February 27 - March 8, IMPERIAL, CA
Imperial Valley Gem & Mineral Society
Imperial Valley Expo
200 East 2nd Street
Hours: Weekends noon - 10 pm; Weekdays 4 pm - 10 pm
John Pyle, Jr. (760) 562-3453
February 28 - March 1: VALLEJO, CA
Vallejo Gem & Mineral Society
Solano County Fairgrounds, Mc Cormack Hall
900 Fairgrounds Drive
Hours: 10:00 - 5:00 daily
Contact: Dan Wolke, 707 334-2950
March 6 - 8: NEWARK, CA
Mineral & Gem Society of Castro Valley
Newark Pavilion
6430 Thornton Avenue
Hours: Fri & Sat 10 - 6; Sun 10 - 5
Contact: Cathy Miller, (510) 887-9007

March 7 - 8: ARCADIA, CA
Monrovia Rockhounds
Los Angeles Arboretum
301 Baldwin Avenue
Hours: 9:00 - 4:30 daily
Contact: Jo Anna Ritchey, (626) 359-1624
March 7 - 8: VENTURA, CA
Ventura Gem & Mineral Society
Ventura County Fairgrounds
10 West Harbor Blvd.
Hours: Sat 10 - 5; Sun 10 - 4
Contact: Krishna Juarez, (805) 323-6725

March 13 - 15: VICTORVILLE, CA
Victorville Valley Gem & Mineral Society
Stoddard Wells Road & Hwy 15
Hours: 9 - 5 daily
Tele: V.V.G.M.C. (760) 243-2330

March 14 - 15: SAN MARINO, CA
Pasadena Lapidary Society
San Marino Masonic Center
3130 Huntington Drive
Hours: Sat 10 - 6, Sun 10 - 5
Contact: Marcia Goetz, (626) 260-7239

Go to for more show information.
February 2015: Nevada State Rock of the Month “Sandstone”  
 Nevada designated sandstone as the official state rock in 1987, a result of the efforts of children from Gene Ward Elementary School in Las Vegas. Sandstone provides some of Nevada's most spectacular scenery. It is found throughout the state of Nevada in areas like the Valley of Fire State Park and Red Rock Canyon Recreational Lands.

Sandstone (sometimes known as arenite) is a clastic sedimentary rock composed mainly of sand-sized minerals or rock grains. Most sandstone is composed of quartz and/or feldspar because these are the most common minerals in the Earth's crust.

The formation of sandstone involves two principal stages. First, a layer or layers of sand accumulates as the result of sedimentation, either from water, as in a stream, lake, or sea or from air as in a desert. Typically, sedimentation occurs by the sand settling out from suspension; i.e., ceasing to be rolled or bounced along the bottom of a body of water or ground surface. Finally, once it has accumulated, the sand becomes sandstone when it is compacted by pressure of overlying deposits and cemented by the precipitation of minerals such as silica and calcium carbonate within the pore spaces between sand grains.
Jeff & Emmy Silverman’s Utah National Park Adventure
At 8,000 feet, the sky was a deep blue, the temperature a balmy 20 degrees, but the sun shined brightly on the hoodoos of Bryce Canyon National Park in Utah.  Bryce was just one of the stops on our New Year’s 2015 trip.  We spent almost two days there soaking in the beauty of this wonder of nature. Hoodoos are the name for the tall, spindly rock formations that make Bryce so famous.  They consist of limestone, dolomite and siltstone layers.  Over millions of years, erosion from wind and water sculpted the hoodoos.  Erosion is still occurring today and eventually. Bryce Canyon will completely erode away in a few million years, so get their today! We spent hours hiking up and down the trails.  About a foot of snow had fallen a few days earlier, making the hiking more challenging, but decorating the canyon like a winter wonderland.  The contrast of snow on the red/orange hoodoos made the beauty stand out even more.  There is a series of vista points along the rim of the canyon that gives you different variation of views, but all of them are magnificent.

After Bryce, we headed lower in elevation to Zion National Park, which sets at 3,000 feet.  Zion is   1 ½ hours Southwest of Bryce, but the topography couldn’t be more different.  Zion contains eight layers of sandstone, which took over 200 million years to carve and mold.  The park contains cliffs, red canyons, mesas, buttes and massive monoliths.  You can drive through the park to different viewing areas and from there you can hike the trails.  We spent just a day there, stopping our car along the way to marvel at the incredible geology and taking in the uniqueness of the beauty.  You are surrounded on all sides by steep canyon walls, reminiscent of being in Manhattan with the canyons of skyscrapers. Zion is located along the Colorado Plateau, where the rock layers have been uplifted and eroded forming a feature called the Grand Staircase.  The bottom layer of rock at Bryce Canyon is the top layer of rock at Zion and the bottom layer of rock at Zion is the top layer of rock at the Grand Canyon.

After a breath-taking day at Zion, we headed to St. George, where we went to the Dinosaur Discovery Site at Johnson Farm.  This museum houses some of the best dinosaur tracks in the world.  Dilophosaurus and Grallators were some of the dinosaurs that left their tracks at the site 200 million years ago during the early Jurassic Period.  Visitors walk a path between sandstone and mudstone slabs which contain the dinosaur tracks.  It was amazing to stand where these creatures stood so long ago.

We had a great four day adventure to Southern Utah and highly recommend a trip to Bryce Canyon and Zion National parks!
January Whale Bone Field Trip Report  
Saturday January 17, 2015 @ Santa Barbara Beaches
We had a great turnout at our annual whale bone hunt last month. Chris Ward, Bob Knox, Bob & Maxine Dearborn, Bob, Leilani & Jamie Backus, Jeff Dengrove, Richard, Emily & Nicolas Haering and guests Jason Pfau and his two young sons, Jackson & Sawyer all had good luck searching the beaches for the elusive fossil whale bone. Everyone found bone at Refugio State Beach after leaving Gaviota due to unyielding results. We all ate our picnic lunches before heading home for the day. The weather was picture perfect and a good time was had by all.
Chris Ward – Bulletin Editor