Central California Field Geology
Spring 2001 Colloquium

Everyone needs to inspect this webpage and check the dates of the proposed field trips. 
Please let me know ASAP which field trips you can attend and which you can not.

Fitzgerald/Moss Beach Photos
Point Reyes-Marin Headland Photos

Mount Diablo Photos

Course Content & Requirements

Field Trips

Calendar

Field Trip Tallies To-Date

Highly recommended (but not required):
Roadside Geology of Northern and Central California
available in the campus bookstore

Also recommended 
A STREETCAR TO SUBDUCTION - Revised Edition; Clyde Wahrhaftig; published by the American Geophysical Union (1984). A very good publication to help new readers get acquainted with the geological concepts of plate tectonics and subduction and the making of the geological landscape of the Bay Area. Getting hard to find outside of libraries.


Course Content and Requirements

1. Geology Colloquium: 1-unit, transferrable.

2. Topic for Spring 2001: Central California Geology

3. All students must understand that a colloquium is not a seminar. For a seminar class, the student shows up each time and hears a lecture. A colloquium, however, is a discussion format and I will not be providing a presentation for each class meeting. A colloquium is a fluid, dynamic discussion that may be led by the instructor or the students - circumstances will be different each time. The mix of students and their interests is also different each time. As the instructor, I provide guidance and I may provide some direction.

Warning: if you have little tolerance for other students who vocalize, you may not prefer to take a colloquium.

4. Attend at least 2 of the 3 scheduled field trips where students will

5. Read and/or explore the geology of these field trip locations BEFORE the field trip dates.  Some of this exploration can be done during the scheduled Monday class time.  Students who can not attend the Monday class times must conduct these explorations on their own -- and then discuss and explain your findings with the instructor (either during office hours or by e-mail).  Please note that the instructor will probably not be able to send many e-mail replies.


These are the three field trips

1. Mt. Diablo
2. Point Reyes
        to include pillow basalts and the Marin Headlands
        may include Mt. Tamalpais
3. Coastal Geology
      Half Moon Bay Area
       to include Devil's Slide
 
4. Field Trip Options
that you may conduct on your own:
 
--- The logistics for an overnight trip for this class has turned out to be very difficult -- we have people who adamantly want to camp, others who adamantly will not camp, we have people who can not hike far at all and we have others who would like to climb mountains....we have some people who are very strapped for cash and want to do everything very cheap - and we have others who will be miserable with those conditions.....
 
 

The Semester Calendar is below
the first day's survey indicated that the days shaded grey are not "good" for many
--(notice how many days are "greyed-out")
I chose within the remaining dates to best spread the field trips apart

Sunday Monday Tuesday Wednesday Thursday Friday Saturday
4-Feb 5-Feb 6-Feb 7-Feb 8-Feb 9-Feb 10-Feb
11-Feb 12-Feb
Intro to Bay Area Geology
13-Feb 14-Feb 15-Feb 16-Feb 17-Feb
18-Feb 19-Feb
Holiday
No Class
20-Feb 21-Feb 22-Feb 23-Feb 24-Feb
25-Feb
26-Feb 27-Feb 28-Feb 1-Mar 2-Mar
Hayward
Field  Trip
11am-2pm
3-Mar
4-Mar
Mt. Diablo
10am-5pm
5-Mar 6-Mar 7-Mar 8-Mar 9-Mar 10-Mar
11-Mar 12-Mar 13-Mar 14-Mar 15-Mar 16-Mar 17-Mar
18-Mar
Mt. Diablo
10am-5pm
19-Mar 20-Mar 21-Mar 22-Mar 23-Mar 24-Mar
25-Mar 26-Mar 27-Mar 28-Mar 29-Mar 30-Mar 31-Mar
Pt. Reyes
all day
1-Apr
2-Apr 3-Apr 4-Apr 5-Apr 6-Apr 7-Apr
8-Apr
Spring Break
9-Apr
Spring Break
10-Apr
Spring Break
11-Apr
Spring Break
12-Apr
Spring Break
13-Apr
Spring Break
14-Apr
Spring Break
15-Apr
Easter
16-Apr 17-Apr 18-Apr 19-Apr 20-Apr 21-Apr
22-Apr
23-Apr 24-Apr 25-Apr 26-Apr 27-Apr
28-Apr
29-Apr
Coastal
Geology

all day
30-Apr
Last Day of Colloquium
1-May 2-May 3-May 4-May
Sunol
Field Trip
12:30-6:30pm
5-May

 


Mt. Diablo Sunday March 18

Mount Diablo Field Trip Photos

Mount Diablo Field Trip Photo Albums

The Mount Diablo Field Trip went very well -- the weather was perfect.  We met at 10am at the lookout on the top of the Summit Visitor's Center.  If anyone missed the chance to go inside the Visitor's Center, don't miss it the next time that you go to Mt. Diablo.

The view was spectacular - the view to the Sierra Nevadas was awesome.  Sutter Buttes, Mt. St. Helena and Lassen Peak were also visible (the Valley smog usually obscures all of these).  Fog covered San Francisco Bay... the downtown scyscrapers were visible - as was Mt. Tamalpais.  The Golden Gate Bridge began the emerge as the fog burned off as time progressed.  Milli and Santiago pointed out Brentwood for us!

From the top, we observed the cuesta ridges that include Morgan Territory along the east side of Mount Diablo - and we traced the path of the Calaveras Fault (from Danville to Sunol = 680).

Next, was a geology walk along the Summit Fire Interpretive Trail (a .5 mile loop).  Jurassic/Cretaceous Franciscan melange: serpentine with slickensides, greenstone, red-bedded radiolarian chert, graywacke, metachert, quartz veins with occasional calcite, folded chert beds. The Devil's Pulpit = chert knob (the one Santiago climbed).  Students began basic field notes and we introduced the Brunton geologic compass to measure strike and dip. As we had viewed rocks samples and discussed the Franciscan and California tectonic history in class, participants were able to recognize and understand the rocks and the geologic setting.  Great views.  Everyone's attitude was fantastic - nice bunch of folks.

Around 12:30pm or so(?), we headed down the hill to Rock City.  Nice exposures of Franciscan rocks along the road down:  beautiful slickensides in serpentine and extensive red-bedded chert outcrops.

1-1:30 pm  Lunch at Rock City. 

2-2:30pm  We explored the vertical Eocene marine sandstone (Domengine) exposed at Rock City - the "Wind Caves".  Discussed the genesis and formation of the erosional features observed.  Walked around and on the rock exposures.

3:30? or so  Field Trip wrapped up and folks headed home.  Great Trip!  I hope that you all have a chance to go back with your friends and family - there are lots of spectacular views, lots of different trails to explore -- and you know the rocks and the geology!

Mount Diablo Field Trip Photos

Mount Diablo Field Trip Photo Albums

We will practice with the compasses tomorrow in class (not everyone got much of a chance to use them in the field).  BTW (by the way) - I found the missing Brunton compass.


Mt. Diablo Pre-trip info:

 


Mount Diablo Trip on March 4

We had 10 people at the top of Mt. Diablo this Sunday morning.  We perused the Visitor's Center and then headed down to Max's for lunch..... the outdoor geology portion of the trip was postponed due to inclement weather ..... (translate this as gusty blowing COLD rain)....
 
We are rescheduling the trip to
Sunday, March 18th -- meet at the top at 10am.
 
The entrance fee was $2.
Give yourself a good hour for the drive up - most if it's 15mph and is best enjoyed at that speed and no faster! (you can't see the rocks or the views if you go faster and scare the bicyclists) -- so leave home before 9am on the 18th.
 
We had a great time in spite of the weather - am looking forward to the 18th.

 

Point Reyes

For those who could not come, check out the websites below:

 

Point Reyes Pre-Trip Info


Coastal Geology Field Trip 
  Sunday, April 29 10am

 

Pre-Trip Info


Field Trip Tallies as of May 1

codename

Hayward Field Trip  Mar 2

Mt. Diablo Field Trip  Mar 4

Mt. Diablo Field Trip  Mar 18

Point Reyes Field Trip Mar 31

Half Moon Bay Coastal Field Trip April 29

Sunol Field Trip     May 4

Personal Field Trips

TOTAL FIELD TRIPS

TERM GRADE

codename

Rabe Kilir

 ---

0.5

1

1

1

1

1 Sunol 4/16

5.5

A++

Rabe Kilir

6602

Geo 10

0.5

1

1

1

Geo 10

 

4

A+

6602

4387

1

0.5

1

 ---

1

 

 

3.5

A+

4387

9676

 ---

0.5

1

1

1

 

 

3.5

A+

9676

goodstreak

 ---

0.5

1

1

1

 

 

3.5

A+

goodstreak

iluvbrnrxs

 ---

0.5

1

1

1

 

 

3.5

A+

iluvbrnrxs

W58

 ---

0.5

1

1

1

 

 

3.5

A+

W58

2461

 ---

 ---

1

 ---

 ---

1

 

2

A

2461

4416

 ---

 ---

1

1

 ---

 

 

2

A

4416

6021

 ---

 ---

 ---

 ---

1

 

Pinnacles

2

A

6021

834AT1201

1

 ---

 ---

1

 ---

 

 

2

A

834AT1201

Jman

 ---

 ---

 ---

1

1

 

 

2

A

Jman

Frogg12

 ---

 ---

 ---

 ---

 ---

1

Mt. Diablo

2

A

Frogg12

2396

 ---

 ---

1

 ---

 ---

1

 

2

A

2396

chevyguy

 ---

 ---

0.5

 ---

0.5

 

.5 Caves

1.5

B

chevyguy

O938

 ---

 ---

 ---

 ---

 ---

 

 

0

W

O938